Vostro 270 MT Core i3 Win 7 Pro Desktop $429 at Dell Business

Dell Business has the Vostro 270 Mini Tower 3rd Generation Core i3 Desktop on sale for $429 with free shipping. You can get a similarly configured Vostro 270s Slim Tower w/ Windows 7 HP for $399 shipped. You can also get $50 off a Vostro 270s that's $549 or more with code W9D06J14FX10WM [Exp 1/30].

Intel Core i3-3220 Dual-Core 3.3GHz, 4GB RAM, 500GB HDD

Intel HD, 802.11 b/g/n, 16X DVD+/-RW, Windows 7 Pro x64