Updated! (9/4/08)

Main Computer:
CPU: AMD Phenom X4 9600 (O.C.) 2.7 GHz
MB: ASUS M3A32-MVP + WiFi
MEM: Corsair Dominator 4GB (2x2GB) PC2-8500
PSU: Enermax Galaxy 1000w Modular
HDD1: Seagate Barracuda 250GB 7200 RPM 32MB Buffer
GFX1: Visiontek Radeon HD 4870 512MB
BDD: Lite-On SATA DVD Drive 20x
SFX: Creative Sound Blaster X-Fi Titanium Fatal1ty Pro
CASE Thermaltake Armor+
DIS: Samsung Syncmaster 2493HM 24"
OS: Windows XP Professional SP3

Finally finished this one. It is a real power house even though I cut it down from what it originally was by returning stuff and switching them out. The two biggest mistakes I made were the PSU and the processor. The 9600 uses a lower stepping revision and I neglected to get the Black Edition, so my overclocking was limited to 400 MHz, but the system still runs totally stable on all stress tests. I just wish I would have gotten the 9850 or the 9950. I had a water cooling system but all of the ones I tried did not give me the results I wanted for the price I had to pay, so I ditched them and I still run perfectly cool.

Home Server: (under construction)
MOD: Dell XPS 410
CPU: Intel Core 2 Duo E7200 2.53 GHz
HDD: 4x various (1TB of space total)
OS: Windows XP Media Center SP3

I swapped out my XPS 400 motherboard with one that comes in the XPS 410s, which allowed me to get rid of the Pentium D for a Core 2. I stripped out everything else in the case and plugged in four hard drives, which two are old IDE ones from other computers I had and two are newer SATA. I am planning on putting four 1TB hard drives in eventually, but right now it serves its purpose. It is linked into the router that provides the wireless for my home network so I can access it remotely from any computer in the house and it just torrents stuff all day long.

As for ones I don't use so often, I have an iBook G4 12" and a 15" Toshiba Satellite for laptops.

What OS is that, leafo? Solaris?

Current Laptop:
2 gig RAM
80 Gig HD
Nvidia Geforce Go 7600
2 gig dual core processor (so, 4 gig processor)
Don't know about the motherboard

New Desktop (I don't have the $$ yet, but I'm only about $300-400 away)
This is meant for a gaming PC, so tell me if I should upgrade anything right now
ASUS P5K Premium/WIFI-AP 775 Intel P35 ATX Intel Motherboard
Nvidia Geforce 8800 GT
Intel 2 Duo E8400 3 gig Processor (so, 6 gig)
4 gig RAM (upgradable to 8, iirc)
500 gig HD

For my new one though, I have to buy a completely new one.  I can't just upgrade my junk one, because it went shit circa 2000.  The newest game I have that runs on it is C&C:Generals, and it barely runs.

What OS is that, leafo? Solaris?

nah. it is arch linux with openbox + pypanel

I installed KDE 4.1 RC yesterday. I like it, although there's a lack of GTK compatibility. I don't really use any GTK apps though, except Firefox (and I guess that is getting remedied sooner or later). Love plasma anyway!
Obviously it is kind of buggy (RC after all).

I'm really thinking of switching to linux, soo many problems with drivers and the like. I have decided, my next computer will be a mac.

The interface of KDE looks too bulky for me. I prefer something more along the lines of gnome or stuff like Lassekongo puts together. Most of ubuntu's default interfaces don't bug me.

This is the one I just put together.

Case: Antec 900
CPU: Intel E8200 at 2.66Ghz x 2, 1333Mhz
GPU: XFX 8800GT Alpha Dog
HDD: 250GB WD 7200rpm (stolen from another computer), also 130GB WD External USB.
Motherboard: Asus P5K / SE
PSU: OCZ 500W
Cooling: 2 x 120mm blue LED fans on front, 1 x 120mm blue LED fan on side, 1 x 200mm fan on top, 1 x 120mm blue LED fan on back. CPU fan is something retarded and I need suggestions for a good fan that isn't huge and/or wildly expensive. Computer idles at about 46C.
RAM: 2 x 1GB OCZ DD2-800Mhz, I'm thinking about putting 2 more in it.

The interface of KDE looks too bulky for me. I prefer something more along the lines of gnome or stuff like Lassekongo puts together. Most of ubuntu's default interfaces don't bug me.

I can see what you mean, at least with KDE 3. The GNOME interface really is more streamlined...but I've come to like the whole "package" that KDE is. It feels a bit like a Mac in a sense, with all included apps being part of the system itself. KDE feels more polished than GNOME.
Of course I haven't used it for very long (and not for school work or anything serious) and I mostly switched because my GNOME setup is breaking apart (too many unclean dist upgrades). My windows install is acting up too so I might as well clean out the whole thing.

to  keep in line with the topic a bit more; here's my laptop's specs:

HP Compaq TC4400 Tablet PC
CPU:  Intel Core 2 Duo T7200 2.0GHz
RAM:  1 GB
HDD:  ~70 GB, initially 60 GB but had a hidden partition that I intelligently repartitioned...
GPU:  Intel 950GMA
Display:  12.1" 1024x768, digitizer screen with glass surface (matte!)
Input devices:  Keyboard, Touchpad, Trackpoint (or whatever that little joystick is called) and Wacom pen
Other stuff:   WLAN, Bluetooth, SD card reader, IR, mono speaker, fingerprint reader, light sensor, mic

Lovely thing it is. A bit on the heavy side (2 kg) but the quality and function makes up for that. It is exceptionally well built, easily as well as a ThinkPad. Very sturdy. The glass screen makes it easy to clean and also means it is almost impossible to damage it by poking at it or the like. The viewing angle is VERY good too, and the screen swivels (still sturdy after over a year of everyday use).
Battery is showing signs of aging sadly, might need to get a replacement.
All in all A++ would buy again (no I wouldn't, I would want a ThinkPad x61 tablet instead)

i have a macbook and its at the center of my digital lifestyle

Is that an irc client in the terminal?

yep, they call it the client of the future: http://irssi.org/

My computer is currently providing a solid base for my fishbowl as well as some magazines and plates.
The monitor is kinda dusty... uh...
And my computer chair is p comfy but the fabric in the seat has started to wear so you can see the foam, which I reckon means that it is time to get a new chair. I really like this chair though, it reminds me of the chair we have at work that has the little lever on the bottom so that you can control the height and its kind of like a pneumatic thing, except on the chair at home I never use it, I always keep it on the lowest level. My room is such a mess though that I can't really roll around in the chair, because there are like clothes on the floor and stuff, and my desk is kinda small so that when I am sitting at the computer I either have to either stick my legs under the left side of the desk and rub my leg against the leg of the desk or stick my legs out to the left past the desk. I like to play Civ3 a lot sometimes, and my mousepad is an old National Geographic hardcover on Archaeology. There is a collection of cans of Dr Pepper accumulating on top of the scanner... and in front of it there are a bunch of papers and reciepts and tax forms and stuff that I can't be bothered to fill out. Its actually getting kinda cluttered, maybe I should clean this up...

Well, I hope that this computer is going to be in your office or somewhere other than where you sleep unless you are used to loud noises.

The stock coolers on the 4870s and 4870x2s sound like hair driers when they are throttled up, and if you do not throttle them up they will overheat or at least run extremely hot, which in turn will considerably increase your case ambient temperature. Also having tried two 4870s in a mid tower case pretty much exactly like the Antec 900, I can say that they will probably generate too much heat unless you add the maximum amount of fans you can (2 in the front, 2 on the side, and one in the rear) but that does generate a lot of noise even when using "silent" 120mm fans. I found that it was impossible to Crossfire in a silent PC without replacing the stock coolers and eventually I just returned the second card, since silence was more valuable to me than performance on games I never played.

Also if you are going to spend that kind of money on two 4870x2s, then why not go with a Core 2 Extreme up front? If you don't I can pretty much tell you that without a decent size overclock (to about ~3.5 GHz or maybe more) the CPU is going to bottleneck the gaming performance and never reach the potential of two of those monsters.

A 700W PSU is probably not enough to Crossfire 2 4870x2s, they are pretty heavy in terms of power consumption under load. Even the 4850s use about 260W or more under load.