For all of those who got stuck on waiting for root device, make sure to check all appropriate SATA kexts during customize. For instance, AHCI, VIA, ATI or any relevant kexts. Another way is to simply install on a USB hard-drive.

If the problem is choppy sound, try booting using the flag idlehald=0. If sound doesn't work even when seemingly proper kext and version is selected, make sure to have removed all other sound kexts first, and to have cleared kext cache and set kext permissions afterwards -- a useful tool in doing so is osx86tools.

I hope this helps anyone.

P.S

Perfect install (dvd runs smoothly when use cpus=1 or mach_970). Perfect run/sound/video, but no big desktop -- only clone mode. AMD Athlon X2/Ati Radeon X1250/ALC 268