I am sure this is an easy question, but I haven't been keeping up with new boards lately. What is the difference between the Abit KR7A-Raid and the KR7A-133R motherboards (besides $20)?? They use the same chipset, have the same number of slots for memory and PCI, both support ATA/133, both have raid, etc,etc. Please help I'm confused!! Also, which one is better for a XP200+ ??