like i said on irc too, cpu

Wait you're not going to see any of this with a new processor.  You can overclock your processor to safe speed way above factory settings but if you're looking for GAEMING you better buy a graphics card which I don't see listed in your little thing.

Processor will affect 3DSMax rendering more than any other component and is also very important in gaming and normal every day use.

I didn't notice much difference in performance at all when I upgraded from IDE to SATA HDD.

I'm not an expert in overclocking, but from what I've read is that if you're gonna up the FSB, you shouldn't use auto voltages (default is fine, but not auto). The reason is that the motherboard might use unnecessarily high voltages when you OC, even if it'd run stable with smaller voltages, thus overheating your components unnecessarily, which can affect performance as well as shorten the lifespan of your computer. You should set the voltages to default, safe range (and as low as possible for those), and then increase them as necessary to get the lowest possible, but stable voltages.

I'm not really sure how the MB Intelligent Tweaker thing that Gigabyte has works. Is it something similar to AI NOS (like it doesn't really overclock 24/7, but just boosts the FSB when your processor is under load). From what you said it doesn't sound like this though, since you manually increased the FSB.

Does your RAM run with lower timings when overclocked? I would probably try with lower timings, even if you have to reduce the DRAM frequency. At least I don't think your timings and bandwidth are in good balance, as those timings seem awfully high (also afaik you don't really get much more performance increase from 3:5 FS​RAM ratio, in comparison to 4:5 or 1:1, so you don't really need that high DRAM freq).