Continue to look at OWC. Their Voyager enclosure allows you to add bare hard drives.
Seagate, Hitachi and Western Digital are good reliable brand name hard drives.
Prices on hard drives remain high today due to the floods in Thailand last year. I just paid $119 for a 2 TB Hard drive. Average price is about $150.
Steve Eisen
Eisen Video Productions
Vice President
Chicago Final Cut Pro Users Group