Shuttle is expanding its line of SFF PCs with the SN25P. The size of the case itself is bigger in size, allowing for better airflow and easier access inside. The motherboard uses the nForce4 Ultra chipset and has everything you would need already integrated, including 7.1 audio. One of the best new features is an external clear CMOS button. Maybe this will help the Shuttle line appeal to the more overclocking friendly techies.
Shuttle XPC SN25P - Small Form Factor Barebone [TrustedReviews]