Antec ISK 300-150 Desktop at low mini ITX footprint adapter 150 Watt Black USB / Audio / E-SATA (Accessory)
This now famous case provides in a "shoe box" size can assemble an already powerful machine. A mini-ITX H61 motherboard with an Intel i3 processor eg + 8 GB of RAM and Windows 7, and that's more than enough office machine for 80% of users. integ