Hi, this is for a full rig that's ready to mine. It has an ASRock Extreme 3 Motherboard (Link: http://www.asrock.com/mb/AMD/870%20Extreme3/
), a 40GB SATA drive and a Sempron CPU. The PSU is a Cougar G700. You could easily add another 5830 to this rig if you wanted - I ran it with 4x 5830 and it got 1250MH/s.
This rig includes everything you need to start mining right out of the box. Even the little stuff like PCI-E risers and dummy plugs, etc. I'll also include a USB wifi adaptor for an additional $10.
So, make an offer. Highest offer gets the rig.