We have one of these in our household attached to the Airport Extreme as network attached storage for family related files. I can vouch for its quality.
The miniStack is a compact hard-drive available in two versions, FireWire 400/800 and USB. Like the other drives featured, it spins at 7200 RPM. It’s encased in a slim white enclosure which sits nicely underneath a Mac mini or Apple Airport Extreme.
Personally, I’m currently ’stuck’ with a 250GB LaCie Porsche Firewire drive for Time Machine. I plan to swap this out with a 1TB external drive as prices continue to drop. The LaCie drive will be set up to backup my boot drive. My Aperture library will get backed up via the Ministack (as seen above).