We always thought the whole appeal of the Mac mini was that, you know, it's small. Silly us. Almost from the launch of the diminutive desktop, peripheral makers have been putting out matching hard drives, bases, skirts and other add-ons in an effort to build that little box up into a skyscraper. The trend reaches its apotheosis with this setup from Japan's Greenhouse, which adds a hard drive enclosure, speaker system with subwoofer, and, of course, the obligatory USB and Firewire hub. We plan on stacking two of them for quad sound and a few extra ports, if we can get away with it without hitting our ceiling.