Especially if you're willing to buy one with a "rebate". (I'm not usually.) I think I've seen them for around $50 for a slower drive (after "rebate"). Check places like MicroCenter, BestBuy and the like.

E.g. [link|http://www.shopteac.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=ST2&Product_Code=1CD&Category_Code=CDI|Teac 12x10x32 CD-RW] internal IDE drive kit (including software, cable, etc.) for $80 direct from Teac. They have a slower drive for $60.

No recommendation to buy these (though I have had good luck with Teac products), just FYI.

I agree with your reticence concerning tape for this application. Tape's not the best for moving between random machines.

Cheers,
Scott.