I am thinking of getting the following PSU:
http://www.win-tact.com.tw/data/file...41989xn2f8.pdf
The PSU can supply 30A on its 12V rails so with a molex to PCI-E power adaptor it looks like it should be able to power an HD3870 and an E4300. I would probably also have to get a molex to SATA converter too. Unless I have missed something the PSU does look to have a decent specification.
I am not so sure about the OEM but it seems that Win Tact were an OEM for PC Power and Cooling.
I wonder how noisy the PSU will be considering it is a server PSU??