The solo is supposed to be quieter providing you choose your other components carfeully (which you have) It will run silent as best as I can tell. The only noise will come from what ever gfx card you eventually pick.
There's plenty enough air flow in it to overclock to 3.0GHz nicely.
Yep the PRO pops around £80 now so it's probably worth picking one up at that price but the dark raider can handle 3.0GHz no problem. Technically it won't even go over it's rated 1333MHz FSB anyway so it itself wouldn't be overclocked
