Seagate Technology 200 GB USB 2.0 and FireWire External Drive ( ST3200823A-RK )
annoying noise
I also experienced the intermittent clicking noise that R. Hoffman heard.  Seagate tech support told me this is normal for this drive - it goes into a self-test mode about every five minutes, which lasts for about one minute, and it cannot be disabled.  It is VERY annoying. Otherwise it's not too noisy.  The Bounceback Express software has minimal features - if you want to use this drive with a full restore function in the event of an internal computer hard drive failure,  you must purchase the professional version of the software for $50-60.