I have a friend calling me stupid for buying one large hard drive of 120 and telling me I should've bought 2 60 gigs hard drives and pay the extra $20. So which is better? To have one big hard drive of 120 gig or two smaller hard drives of 60 gigs. The reason for this is that I canuse one drive as a back up drive. However, I'm already using 100 gig of my 120.