I'm currently looking at buying a new graphics card and decided that the 7800 GT looks best for me. Are there any major differences between different manufacturers : XFX, MSI, Asus,...
And the card OC really well i have achieved a core clock stable of 528mhz and memory of 1224mhz stable have not bothered to benchmark in 05 yet at these speeds.
I think the EVGA GF7800GT CO has some of the best features including being the fastest 'stock' card, and in many places I've seen it for less than most plain GT, even eVGA's plain GT.
Beyond that it's a question of personal preference.
might need 550 psu to be on safe side. my set up will be very similar (when i get it, maybe not this side of xmas in order to get slightly better system) and it's coming with 550 psu and thats in a mini tower!