For years, my husband tore his hair out over me taking over his desktop computer and plugging my hard drives into his motherboard, leaving the side off the case and the hard drives strung out on their IDE cables and sitting on empty CD spindles. When my desktop finally bit the dust, I couldn't access my SATA drive because his motherboard was to old to support it, so he let me buy this:
It's been great because I can hook any of my old drives up for quick access. My brother even gave me an old 80GB drive I use for video editing that I essentially use as an external hard drive. I also used this little baby to send everything on the old drives over to my 1TB network-attached storage. If you are in the market for a large external drive and don't mind a certain about of the cyberpunk look, you can save money by getting this if the difference between internal and external drives exceeds $24 + shipping. Just don't let your two-year-old throw drives on the floor unless they are solid-state.