Noise level isn't that high at all I don't have an exact dB rating but I had this hooked up with 3 high powered fans blowing on it from the side so there was lots of noise. Without the fans I would say it doesnt make that much noise at all as the PSU and other components are relatively quiet, just if you decide to OC the fans on the cards it would increase the noise a bit.

Don't know the exact draw of power but the PSU are each 1000w and 5 rigs have 4 5830s and 1 rig has 5850s. They all have amd sempron 140 processors, 1gb, same mobo, if that helps you calculate draw or whatever.

@wisdomtool I'm looking to get rid of them all in one go but if I cannot do that then I will consider selling server by server.