Trans Intl. offers the ProStor 635i 2TB eSATA / FireWire 800 / USB 2.0 External Hard Drive for $178 plus $8 for shipping ($0.09/GB). That’s $104 under the lowest total price we could find for a similar drive elsewhere. This 2TB 7200 rpm external hard drive features an aluminum casing, 64MB cache, eSATA and USB combo port, two FireWire 800 ports, and FireWire 400 port.
Note that these drives are designed to fit under an iMac base, but can be used with any Mac or PC.