I am getting ready to build a PC for the first time and I am a bit confused with the boot disc and bios configuration parts of the set up. I have read a few sites but I still dont really understand what they are talking about. Could someone explain this stuff at a beginners level? It seems a bit advanced on most of the sites Ive read. So what is the boot drive disc for and where can I get one? What are the common things I would have to configure in the bios? What about installing the CD ROM Drive... do I need a disc for that? And could some one possibly give any helpful links for installing hard drives...I cant seem to find any explaining how to set up raid. And for the Operating System... What is the difference between a normal copy of Windows Xp and an OEM version?