CORSAIR CMPSU-620HX 620W ATX12V v2.2 and EPS12V 2.91 SLI Certified CrossFire Ready 80 PLUS Certified Modular Active PFC Compatible with Core i7 Power Supply - Retail
Voted 2009 Best Power Supply Manufacturer by Custom PC Magazine http://www.newegg.com/Product/Product.aspx?Item=N82E168...
I have heard/read (on another forum) that the noise from the Corsair H50 pump is noticeable in the Haf 932, so this is not likely to be different in the Haf 922. So if you want to keep the noise level down and keep the massive cooling potential of the Corsair H50, then I would advise to look for a case that is more likely to dampen the sound coming from the pump.
According to these charts: http://www.tomshardware.co.uk/charts/2009-3.5-desktop-h... http://www.tomshardware.co.uk/charts/2009-3.5-desktop-h...
the Caviar Black is 4dBa louder than the Green is, however the Black is a faster drive, as you said.
Actually that case is noisy because of the fans, when I went to Akihabara in Tokyo (hardware center of Asia) and bought my own machine they recommended to get the Coolermaster CM 690. This case is also nice and has space enough for the best air cooler.
So might be better not to get a water cooler if it noisy and go for the best air cooler I mentioned and super quiet 120mm fan,