A few months ago, I purchased this hard drive along with a USB enclosure to use as an external hard drive. By the way, this was back when my PC was my primary computer. Then, I got my iBook and now use this almost exclusively. Since I've had computer problems in the past with some of my PCs, I always try to back up my data from time to time. So, I looked into the ability to boot from an external hard drive, which I thought would be awesome. However, I soon found out that this ability is only possible using Firewire. Now, I'm looking into a good Firewire enclosure to put my hard drive into. Any recommendations? By the way, if possible, the most I would like to spend is $50. If you think that that is too little, then that's because I've been shopping Newegg for a while, replacing crappy PC parts that came with my Compaq desktop. But if you find one that happens to be a little bit more expensive, don't hesitate to post the link. I'm always willing to consider different options.