Fry's/ has a Buffalo 320GB External hard drive with free ground shipping for $129.99 before a $40 rebate.

Residents of AZ, CA, GA, OH, TX, NV, WA, IL and IN add sales tax.

320GB hard drive $129.99 here

$40 rebate pdf form here

CNet gave the 160GB version a 7.3 (Very Good) with user ratings at a 5.2 (average)

Don't know about the manufacturer but looking at external hard drives in general they seem to be a crapshoot based on reviews with people either loving them or having them fail.