This is a New OCZ GameXstream 700w PSU which RRP's at roughly £120.00, it has only been used for a couple of hours. It is being sold because I bought it to replace my old PSU. But in my own opinion I think it is loud, this is because my system is totally fanless. The PSU is in full working order and I was able to test the rails on it, if you are interested they are as follows.
These results show that the PSU is extremely stable
The PSU's specs can be found herehttp://www.ocztechnology.com/products/power_management/ocz_gamexstream_power_supply
Asking price £95 p+p