I discussed the Seagate 1 terabyte and Samsung hard drives on April 9th. Prices have dropped with the imminent arrival of 1.5GB models. While I prefer the “NS” version (enterprise class ST31000340NS), the “AS” version ST31000340AS is a killer deal at only $121.99 at zipzoomfly.com. (I don’t make any commission at zipzoomfly, they just have rock-bottom prices). Amazon has the same drive for $139.99 and free shipping through amazon prime, use the search box at right, searching for ST31000340AS.
If you have a Mac Pro, or external enclosure that accepts SATA drives, this is a great time to add a drive or two for performance (single drive or striped RAID) or reliability (mirrored RAID) or extra storage. A 3-drive striped of the Seagates can sustain over 300MB/sec, and a 64GB partition on those drives makes a terrific Photoshop scratch disk. See also my Hard Drives page.