If you're interested in buying more servers, this is a fucking steal: http://www.ebay.com/itm/Rackable-C1001-1U-2x-AMD-2356-Quad-Core-2-3Ghz-Server-w-KFSN4-DRE-system-board-/190662831803?pt=COMP_EN_Servers&hash=item2c6463eebb#ht_4755wt_835

Hope this isn't looked upon as spamming. I obviously can't prove that auction isn't mine, but I've been debating buying one or two or ten of those for a few weeks now. You'd have to swap out the PSU (or find a -48VDC power source), but $100 for the case/CPUs/motherboard is g'damn.