Geeks.com has the Ark PI-01 2-Bay Mini-ITX Computer Case with 300W 20+4-pin power supply for $39 + shipping. Shipping is about $9. Features one 5.25-inch external optical drive and one 3.5-inch internal drive bay and 3 x 3-inch (80 mm) cooling fan, compatible with Mini ITX 170 x 170 mm motherboard. [Compare]