i guess u meant to say "how am i going to buy, ur not in usa"
the i7 is better, but since u cant buy from new, most reviews say the MSI 790fx-gd70 is the best am3, but anything from msi or gigabyte will do the job well, always do research b4 u buy.
i wonder what would run crysis better, an i7 and 2 4770s or a 955 and 2 4890s hmmmm
I know Toms came up with i7 920 with 2x 260 or something like this against PII 955 with 2x 4890(?). But in OP's case... would love to see the i7 with 1x 4890 (or 2x 4770) vs PII 955 with 2x 4890 (if they are in the same price range).