Hi Guys, I've a PC so configured:

MB GIGABYTE UD5 EX58
6GB RAM CORSAIR DOMINATOR
2HDD WD5001AALS
ATI RADEON HD5850

I've read in many forums that in BIOS I've to set SATA MODE to AHCI. Doing so I lose the possibility to have a powerful RAID. Is this information true? There is another way to install OSX on my PC? Could you please give me a link for a installation guide step by step of this new OS? And, finally, where I can find the installation image of Snow Leopard?

Thanks in advance to all of you!!!