I'm looking at building another computer and there seems to be much praise for the XP333 (Raid) motherboard. Is there any difference with the non-raid version???? Does it have usb 2.0 and 6 channel sound??? The sound is not a big deal but I would like built in usb 2.0.. I see Biostar also has a kt333 board WITH built in usb 2.0.. Some suggetions please