I think you'll enjoy a hori, especially if you are still fresh to playing fighting games on the stick. Hori's use cheap knock offs for their parts but there's pretty much no difference button wise, and you won't notice the difference stick-wise unless you've been playing on sanwas for a good while.
If you want to shell out the cash for the authentic japanese parts found in arcades you can get the hrap 3 which I think there is one for the 360 at least. I think those go for about 100 dollars. The HRAP (Hori real arcade pro) sticks use all sanwa parts as far as I know. Also from what I gather they are much easier to modify than the hori ex fighting sticks if there is every something about them you don't like. You'll see high level players using these all the time so I'd definetly give it a look.
If you want to shell out even more and maybe take care of the dreamcast issue (I wouldn't bother getting a gamecube stick when you can get almost every popular 2d fighting game on the dreamcast for free) you can drop by the trading post forum on
shoryuken.com and request one from the custom stick builders there, but that will probably run you 200+ dollars.
Also if you wanna play some hd you can hit me up on xbl my tag is sweet beard b.