I don't know if there is any compatability issue with Macs, but I've found WD to be reliable and the 5 year guarantee is comforting.
Run MS SyncToy with the external drive weekly (or more frequently if modifying important data) and remove the external drive if going away for more than 24 hours.
I have been researching external hard drives and still have no clue as to which will be the most reliable. I have an iMac G5 with OS X 10.3.9. I would like to get an external hard drive, about 250 GB--any price. It will be for storage of images (used primarily in Photoshop CS), documents, and some movie files for Final Cut Pro.
Based on various reviews, I have considered a LaCie d2, Iomega Black Series, or G-tech drive. I am mostly concerned about the drive crashing and losing my files--which sounds like it happens about 25% of the time with LaCies.
I am open to any suggestions. Thanks!

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