Matthew, do yourself a huge favor and visit Other World Computing's
external drives page. Bar none, the finest drives out there in terms of price, performance and flexibility (ports.) My boss has bought P.O.S. LaCie drives for years because of their low cost and we've had no fewer than five of them fail. I only use OWC Mercury Elite drives to back up my own machines and for external storage at the office as well and I've never had a single problem. A quick look at their current pricing shows a 2TB drive coming in at well under a grand.