Musicians friend has the kit for 119.00. Includes ribbons and instructions.
Very easy to install.
It's basically an internal Iomega eide-atapi zip drive (100 mb) It doesn't matter if it's mac or pc (should you decide to buy one on your own) And you can install a 250 mb internal Iomega ide-atapi zip drive as well just make sure you dload the 1.14c OS that tutor has on this site; it works great with the zip 250. If you go this route, musicians friend sells the ribbon cables and power adapter for 34.99.
I'd go with the entire zip 100mb kit; it's a cinch and a steal for this price.
If you live in nyc I do installs for 50.00 and you can wait while it's done. Usually takes about 20 minutes. OH BTW here's the link at musicians friend.com
http://www.musiciansfriend.com/srs7/sid ... e_id/54657
peace