Looks and works great. Check http://www.everymac.com/systems/apple/mac_mini/specs/mac-mini-core-2-duo-1.83-specs.html for full specs.
Just the computer and power adapter, with fresh install of Mac OS X 10.6.8 Snow Leopard. You can use just about any USB keyboard/mouse and DVI monitor. You don't need Apple branded accessories.
If you want an Apple Pro keyboard and mouse, I can include for an extra $20.