hello, i have an imac with 1.83GHtz Intel Core Duo CPU, and the ATI Radeon X1600 and 1 GB of ram (sad i know) and im wondering if i can get acceptable speeds with these specs for games like FFX, Marvel VS Capcom 2, ICO, and FFXII. thnx in advance

Well, I say no, you would not get acceptable speed. Maybe be 40-45 fps in FFX would be nice, but other games are more demanding.