Vantec EZ Swap EX 2.5" Hard Drive Enclosure
 

Recognizing that people want to store and share their data in the smallest form factor, Vantec has developed a hard drive enclosure that will allow you to use a 2.5inch SATA hard drive externally or internally. The Vantec EZ Swap EX 2.5 Inch Hard Drive Enclosure is the compact, internal/external, storage solution we're talking about.

http://www.bigbruin.com/2007/vantecezswap_1