Just picked up 2 Seagate FreeAgent External Drive 1.5TB from Walmart for $35
.00 each.
YMMV because I know many places are still marked at $70.00 each.
Here's what it looks like:
Link: http://www.walmart.com/ip/Seagate-1.5TB-3.5-Hard-Drive/15055747
Good luck hunting!