Getting a graphic card


Sep 13, 2009
so i want to buy a graphic card for my new system.
here is what i have

m4a78 series mother board amd 790GX chipset
amd phenom II 3.1ghz x2 proc black edition
550 W corsair PSU
3gigs DDR3 ram
and i dont know how big it can be because i dont have the biggest case, but its still nice.
windows 7 ultimate
would like to play fallout 3 on high quality (this is recomended: Direct X 9.0c compliant video card with 512MB RAM (NVIDIA 8800 series, ATI 3800 series)
if you need to know what else just ask
no $$ limit but i dont want to spend to much