Bought a NexStar: GX 3.5 IDE External hard drive case. Seems to be working well.

Features include:
Smart Cooling (Fan turns on/off as needed in 'automatic' mode)
USB 2.0 HUB (3 ports)
Passive Heat Sink (Heat sin seats on the bottom of the unit)
Smart Power (Turns off when you computer does)
Security Slot (Allows you to use a security cable lock to prevent theft of hardware)