Okay my comp sucks. 4 year old processor, 256 RAM, and a full 80 Gig HDD. So I bought a 250 Gig Seagate HDD and want to put it in my comp for more space. I have legitmate Windows XP that is running on the current HDD and the install disc handy. I KNOW NOTHING ABOUT DOING THIS, SO PLEASE EXPLAIN EVERYTHING!!! 1. So I need to know how I should do this to optimize performance? 2. How do I figure out what type of RAM I need to buy? 3. Does this web site look right? http://www.basichardware.com/HowTo_Install_Hard_Drive.html Thanks a lot! I have the money and some of the parts to build a new comp, I could probably do it if you guys explain everything to me.