PC Stats posted a Shuttle XPC SN27P2 Small Formfactor Socket AM2 Barebones PC Review

Shuttle's internal layout for its small formfactor computers is among the best in the business; the bits that you need to get to are not hidden behind walls of components, access is nevermore than a screw away, and cables are neatly tucked out of the way. After all, cramming a computer into something as small as a toaster can be a challenge, but Shuttle engineers have thus far utilized the space to its fullest. Compared to a couple other SFF PC's which have passed through the PCSTATS test labs, the Shuttle SFF PC's often seem much more roomy even when fully installed.

Shuttle XPC SN27P2 Small Formfactor Socket AM2 Barebones PC Review