Should i buy this rig??

This is the rig

Intel Core 2 Duo E6300 (1.86ghz, 2MB Cache)
Window Vista
320 Sata hard drive
256 MB Nvidia 7900GS
19" Flat panel
1024 MB

I think most of it is good, but im not sure if i should get the processor is the E6300, and i dont plan to overclock.
Will i be able to play Counterstrike: source with a high FPS? i would like to hear your thoughts on the rig.

ok so ive gathered that this will play cs:s maxed out, but i dont really want to cough up an extra 100 pound. will it be able to play the latest games on med settings then?yoyo462001