Music from hard drive better than CD?

Best thread yet! I am planning to build my own Hard drive system. Does any body have a suggestion on which HD brand, speed (7200 or 10,000 rpm), and what size disk space to buy. Would a relative small size hard disk be better that a large one (i.e. using two 80 gig drives, as opposed to a single 160 gb)?

On a side note, all my current music collection (500 CDs) fitts on a 110 GB hard drive as full wave files. Why? because I only record the best songs, and as we all know most CDs have no more than 4 good songs on them.

Thanks

For those who can build their own, here are some great links:

1. At the botom of this page you will find nice Multimedia cases: http://www.xoxide.com/silverstone1.html

2. Then you can install a quiet/fanless power supply from here: http://www.xoxide.com/fanlesspsu.html