Ok so I have a few multiboxing PCs I don't need, with the same configuration as mine. Specs for each are as follows:
  • Case: 4U Rackmountable case (standard ATX etc) - I'd give a link but I don't know the model, it's just a black case with a flip-down front, lots of room for drives. Comparable cases seem to be about $80. Have rails if you want them.
  • OS: Genuine product key sticker for XP64 OEM. Free with the case. Highly recommend installing the Windows 7 RC (free, will work until next year) for better performance
  • Power supply: 1kW (1000 watt) power supply (standard) - http://www.pcpower.com/power-supply/...ol-1kw-sr.html (current price: $430)
  • Motherboard: TYAN Tempest i5000PW (S5382) - http://www.tyan.com/product_board_detail.aspx?pid=439 (current price: $500-600)
  • CPU: 2x Quad-core Intel Xeon E5345 (total of 8 physical cores, this is higher performance than an i7 with 4 physical cores) - http://ark.intel.com/Product.aspx?id=28032 (current price: $280+ each)
  • RAM: 12GB Kingston KVR 667 - http://www.ec.kingston.com/ecom/conf...667D2D4F5K2/4G (current price: $160/pair of 2GB sticks)
  • Video: 2x BFG 8800 GTX OC2, 768MB -- not in SLI mode, and I don't have the SLI adapter sorry (for multiboxing, you don't want SLI anyway) - http://www.bfgtech.com/bfgr88768gtxoc2e.aspx (current price: $390+ each)
  • Hard Drive: 150GB 10,000RPM SATA hard drive (Western Digital Raptor, WD1500ADFD) -- will be wiped clean before shipping (current price: $90)
Buy a whole PC (with or without all parts) or buy individual parts, prices negotiable. Total cost if you bought the parts online would be roughly $3000 plus shipping.

I 5-box on one of these, usually 60FPS foreground and 30 background. In Dalaran atm i'm at 50 foreground and 30 background, but YMMV -- depending on the number of people around I drop to 15-20FPS at times.

Send me an email if you're interested - lax@lavishsoft.com