Best price / performance crunching rig competition

I'll start with mine,

CPU - £35
Intel Celeron G550

Motherboard - £70
Gigabyte Z77-DS3H

Memory - £20
Corsair Value 2GB

Power Supply - £84
XFX PRO850W

2x GPU - £500
2x Sapphire 7970

1x GPU - £100
Sapphire 7850

Extra - £15
2x riser cables

Total - £824

----------------------------
MD5 - 25329.6 MH/s
SHA1 - 7873.9 MH/s
WPA - 420K k/s

A table for open cooling seemed best.