I followed besweeet's tutorial:
Made a few changes for my situation (I'm not dual booting windows so I didn't have to replace the OSInstall files) and I'm pretty impressed with the stability of my hackintosh.
I'm dual booting (with two drives) Lion and Mountain Lion but I haven't used Lion since I installed ML.
Mobo: Intel DH55HC
CPU: Intel core i3 540 3.07ghz
Video: Zotac 8400GS 512MB DDR3 (worked OOB which wasn't the case with Lion)
Ram: 2x2gb Kingston DDR3 1333ghz
Hard Drive (boot): WD
Scorpio Black WD3200BEKT 320GB 7200rpmSoundcard: Sound Blaster X-Fi Go! PRO USB Sound Card (worked OOB)
3rdParty SATA kext
hnak's AppleIntelE1000e Ethernet kext
Special thanks to besweeet for the great tutorial!