I have 2 -
Haf X 932 Case
1x Sempron CPU, unlocked to Dual Core
Windows 7 Professional 64bit Legit Version (no certificate but from Microsoft Partner Software thing
900 Watt Antec High Current Gamer PSU (runs very cool in comparison to my Coolermaster 1KW Silent Pro.. only going to get Antec in future, they are superior)
3x XFX 5850, 360-370mhs each
1x XFX 5770 Single Slot, 205 mhs
In almost brand new condition, I really don't think it would be safe to send via Mail.. it's very heavy with all the cards.. Pickup would be preferable (in Lancashire).. Price would be at least current Values.. not selling cheap.. but this is already made and running.. just put in your own pool/mining details.
Other Rig is Identical except Haf X 942.. 2x XFX 5850, 1x Sapphire 5830, 1x XFX 5870... total 1.45 ghashes.. also this one has a legit Vista 64bit.
EDIT: 2nd Rig has a Cooler Master Silent Pro 1KW PSU