I currently have a 9600gt OC edition. I have a lot of the newer PC games(GTA IV, Fallout 3, Dragon age and Starcraft II) and am planning on getting the newer ones as they come out. Given my system specs, can you recommend anything?-
MA785GM-US2H Gigabyte mobo
AMD 435 X3 OC to 3.2ghz
4gb patriot 800mhz ram OC to 880mhz
current graphic card-9600gt OC edition
Windows 7 Professional 64bit
Depends on your budget mate, as the GPU could be upgraded fairly cheaply and worthwhile.
I believe your system is capible of playing all the latest games (with an upgraded GPU) fine.
How do i know? As ive just given my old mans old man my old computer just before i upgraded and he plays all the latest games with ease (is an old AMD Athlon X2 4200+. 4gb DDR2 800Mhz Ram with an Nvidia GTX 465 GPU)
With that PSU I say go with a 5770. Since you're currently running an overclocked 9600GT it should be able to handle a 5770 just fine. While a GTX 460 would be better it's impossible to even consider without knowing what specific PSU you have.