I have two mining combos, minus the GPUs, Power, and cases. Everything is in "used" condition but works well.
DFI Lan Party 915P-T12 LGA 775 Motherboard - http://www.newegg.com/Product/Product.aspx?Item=N82E16813136145
Pentium 4 2.8ghz
2GB USB Flash Drive w/BAMT installed
(4) PCI-e 1x -> 16x Extenders
These are configured to boot directly to BAMT, just supply GPUs, power supply, edit the config file and you're mining in 10 mins. The x16 port is a bit close to the first x1 slot, so I'm including an extra extender for it. Also the 4th x1 slot is located on the back of the board, which can be better or worse depending on your needs. These are great for running 4 cards.
Asking 22BTC each or 40BTC for both, shipped US48. I can include Seasonic 80+ Bronze 620w supplies for an additional 12BTC each. I will accept Amazon Payments for those with significant rep. I'll also ship first to reputable members. I have heatware in sig and have conducted about a dozen positive transactions on this board.