well I have a phenom X4 9750, 4Gb DDR2, and a HD4890 1Gb, and i can play crysis warhead in 1650 x 1050 all max 8xAA, but the FPS in some scenarios give me 15 fps max and it makes a little slow (only in some scenarios in all give me 25-30fps), I think crysis 2 will be more GPU eater and with the 9600 i doubt you can run it in medium resolution, i think you can get a 9800 gtx+ for better results, with the 1440x900 you will be fine, but only playing the game we can see if it's enough GPU. (i doubt my 4890 can handle it at max settings maybe a 5870 or gtx480 will be fine, but $$$$$!!!!!!!!!!!!!!!!)