From: Northeast United States
Put it on ebay.
You say you want to run 7 drives in a house, only to serve up less than 5gb of data? Your electric company will LOVE you.
Sell the tower on ebay, if somebody buys it.
I would then buy a cheap 80gb drive, around $50 these days.
Add the drive to the same server you were going to use.
Create a folder for each CD, copy them, then share them.
Map to the shares, its just like hitting a CD.
If you really want to stay on the cheap, remember you can get smaller drives on ebay for peanuts these days.
Good Luck with it!