i have a macbook and know how great imovie and final cut is, but my macbook is to slow, so i built a pc. my pc is on windows 7 now and im using sony vegas pro, but it sucks and i cant take it. im wanting osx on it so i can at least use imovie on this pc. my specs are...

3.2ghz x4 840 quad core phenom ii amd (water cooled if that matters or not)
ati5670 graphics card
8gb of ram
asus mobo

is it possible? ive read a few threads on here but the amd question was a hit and miss for me. if so, which distro, or whatever it is do i need?