I've noticed/read where the majority of the 500+ GB drives (external) are used for the purpose of backup and/or storing movies and photos. My question is, are these drives prone to failure if used as a primary drive? I currently have 4 drives connected (2 external) to my PC (80, 120, 200, 40 GB). I do have a few games (things to play when I need a break) but for the most part, basically used for developing applications (i.e. VB, .NET, Oracle, etc.) I would like to consolidate the drives (i.e. have 2 500+ GB). Can the 500+ GB withstand the daily I/O without causing concern? Diskspace is relatively cheap and I want to benefit from it.

Thanks in advance,


P.S. just exercising caution