i have the pc already, was just looking for an upgrade.
i have everything i listed, except an i3-2120 and a 6750 1Gb
and i was looking to upgrade the processor and GPU to the ones I said
Ah right well if you want to upgrade your processor without your motherboard you'll need either an i5 2500K or a 3570K (i7 probably isn't worth the money). What exact motherboard have you got?
If you know the exact model no. of the Gateway system that the board came from then we might be able to see if Gateway have any information on CPU upgrades.