I have a dell optiplex 745 which I want to run Mac osx 10.6 on but I am stuck on which version to go for.
My specs are:

Core 2 duo 2.16 Ghz
2gb DDR2 Ram
Ati radeon hd 4550
640gb SATA HDD
On-board Sound Card

Some help or even a download link would be greatly appreciated.