If you've considered setting up a Mac mini for such purposes, then you might want to check out Newer Technology's . The $40 acrylic hanger mounts under a desk, shelf, or cabinet and supports the current ( Macworld rated 4 out of 5 mice ) and ( Macworld rated 4.5 out of 5 mice ), as well as all models of Time Capsule.

The NuShelf, which measures 8.1-by-8.1-by-2.1 inches, securely holds the mini in place without obstructing any ports of vents. It mounts using four included screws.

There's also a $45 , which at 3.6 inches high, can accommodate a combination of two Mac minis and Time Capsules (one stacked atop the other).