I am a newbie at this sort of thing, but I am looking for some advice. I just built a new pc and the inital boot was good and I've got the bios set up the way I want it. I have a new 150 GB 10,000 rpm that I put in the new pc, but i also have an old 80 GB 7200 rpm hard drive that is less than a year old that I want to put into this pc also. The burning question is which hard drive to put XP on? I was thinking about leaving the 80 GB hard drive for XP, office, etc. (stuff that I don't necessarily need speed for) and keep the 10000 rpm drive for games (stuff I want to go fast). Am I nuts for going this route and should i just put in the 150 and be done with it? I know I can partition part of the 150 for XP but I am not sure how much I need to partition. Thanks for any advice.