I am going to build a new computer. I am building PC Buyer's Guide for Entry-Level Gaming -- January 2012. I am going to order a few parts each month until I have them all. My question is about hard drive space. In my case I need to wipe the hard drive clean every year or so because of virus or slow computer which is a pain in the butt. I d/l lots of movies and music and lose them in the process because I am to impatient when reinstalling windows. Would it make sense to have a hard drive for my os and a different hard drive for all my downloads? How do you guys handle that? Thanks for any help.