20" ASUS ET2011ET-B029E Pentium E5800(3.20GHz) 4GB DDR3 500GB All-in-One PC Desktop for $399.99

The all new ASUS All-in-one PC ET2011 packs all the benefits in a Stylish PC,  ultra-slim design that is less than an inch thick. Designed to replace your  desktop computer, the ET2011 features quick and easy start-ups, as well as  plug-and-play capabilities. The ET2011’s space-saving design will clear up your  workstation, saving you the mess of snaking and tangled cables. On top of that,  the ET2011 can be wall-mounted, ensuring that it can be used almost anywhere.++