Sony DRXS70U External Portable Slim-Line USB 2.0 DVD Drive

I've been searching for a slim external drive and being portable. There are tons out there being external, a few claims to be slim. This Sony takes the cake! It is extremely light comprared to other external drive. Speed of burning isn't too bad. The only complain is it would be nice to be able to use USB power supply rather than having to carry the power block around as well.
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Iomega Desktop Hard Drive 500 GB Hi-Speed USB 2.0 External Hard Drive - 33654

This is a GREAT external hard drive. It's fast (7200 RPM), can stream a movie straight off it and simultaneously backup a movie with very few lag spikes. It's quiet, only hear it every once in a while when it's doing some heavy duty writing/reading. It's Reliable, haven't had a single problem with it yet.
Best of all, the price is right. I wholeheartedly recommend this external drive to everyone.
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Western Digital WD5000KSRTL Caviar 500 GB SATA Hard Drive

I buy this drive to replace my old IDE hard drives, this is a very fast and silent drive, and it includes the SATA cable with Secure Connect, this is a great product

Western Digital My Passport Essential 320GB USB 2.0 Portable Hard Drive (Midnight Black)

Pack up your office files and take them home. Carry thousands of songs or pictures. Synchronize files between home and office and encrypt everything on the drive for added security with the Western Digital WDME3200TN.re simple to use, light and easy to carry, and require no power adapter - they are powered directly through the USB cable.

Iomega eGo Portable Hard Drive, USB 2.0, 250GB Cherry Red - 33942

Take files anywhere, in style, with the Iomega eGo Portable Hard Drive USB 2.0 - an extremely durable drive, which includes patent pending Drop Guard feature to withstand the toughest of travel environments. Available in 250GB capacity, it holds up to 1,000,000 photos, over 4,625 hours of music and 375 hours of video. Plus, the Iomega eGo Portable Hard Drive requires no external power supply and includes a free EMC Retrospect HD backup software license.

Iomega Desktop Hard Drive 500 GB Hi-Speed USB 2.0 External Hard Drive - 33654

Iomega's Desktop Hard Drive is the affordable way to save precious memories. Not only is this drive economical but it is very easy-to-use and preformatted for simple set up - just plug and play. A simple storage solution.

Western Digital 500 GB My Book Essential 2.0 - USB 2.0 External Hard Drive WDH1U5000N

This elegant external hard drive, reminiscent of a book, is the perfect storage solution. It takes no more space than a paperback book. Collect two or more and they nest neatly together like volumes on a shelf. Installation is a snap because you don't really install this drive, you just plug it in and it's ready to use. A USB 2.0 simple connection offers convenience and compatibility among multiple computers. Dimensions - Height 6.5 x Length 5.4 x Width 2.1 Weight - 2.5 Pounds