decisions

I'm helping a friend to choose a CPU for his new rig (gaming pc) and i'm not sure what i should pick between : AMD Phenom II X2 550 Black Edition 3.10 GHz skt AM3 box HyperTransport 1800 MHz Cache level 1 128 KB Cache level 2 512 KB Cache level 3 6144 KB and Intel Core2 Duo E7500 2.93GHz...

well i have a pretty old comp and esf lags so im gettin a new vid card cause all the other modes and resolutions wouldnt help and i think it lags cuz i have an integrated 8 mb card but i was wonderin i mean is it worth it?cuz i mean will gettin a new vid card help the computer overall or will it...

well heres the thing u see esf lags on my comp .in opengl and d3d my average fps is no higher than 6 and on software its no higher than 12.so thats wen i decided i was gonna get a new vid card since mine is SiS(integrated) so members help me choose one that will run good on my comp. and esf...