Pros: Great drive for low-power PC's. I have a small form-factor HP HTPC with a 180-watt power supply, and this drive runs perfectly on low power. It's also very quiet, which is important for an HTPC.

Cons: None I can see.

Overall Review: This drive replaced a WD Green Power 1 TB that was filling up, and provides huge capacity with low power and quiet operation.

Pros: Great price, biggest drive until WD 2TB came out.

Cons: You know the drill - click, click, click, then no longer seen by Windows Vista. Luckily I have two backups of everything, wouldn't use these drives without it.

Overall Review: My Western Digital 2TB comes tomorrow to replace my dead Seagate. I'll gradually replace all 4 of these that I own with WD. Bought them when they first came out and never updated the firmware (SD17) because I never had any of the dropout problems that others did. But sudden death is NOT a firmware issue - something else is wrong with these drives.

Pros: Quad interface so it works on any PC or Mac. Assembly is relatively easy, and the vertical stand actually SCREWS IN to the enclosure so it stays on when I move the drive around and is very sturdy - no more worries about a drive tipping over.

Cons: It has a very odd limitation: the SATA interface is limited to SATA I with 1.5 Gbps and no NCQ or other SATA II enhancements. In fact, the manual tells you to jumper your drive so it only works at SATA I and doesn't have to "handshake" with the interface every time it's turned on. I've never had an external enclosure that required that, and I've had quite a few. And I had to hunt up those tiny jumpers, too, as I never saved them with new drives and they don't come with OEM drives!

Overall Review: I only use this for backup, so the SATA I limitation is not a problem. But if you want to use this for video editing, etc. over eSATA you will be limiting your drive access speeds. For Firewire 400/800 or USB 2, you'll never hit the limits of SATA I anyway, so doesn't matter.