It sure would be nice to put a CF card adapter in my PowerBook 150 with a dremmeled out slot. I could just pop it out, stick it in a USB CF adapter and put a large file on it. Done in 2-3 minutes with shutting down and starting up again. Easy backup, quick, quiet, and if the card dies I stick in a new one. Sigh, If only I could do it with just by replacing the hard drive with one of these. I have taken one apart before and I might just be able to replace a hard drive, but re-connecting the little cable at the back is hard even with small fingers.