www.svc.com has 38CFM 60mm Deltas for 2.49 a peice. One of the highest performance 60mm's ever made, but they were so loud that they werent desired by anyone but the most hardcore. I guess thats why thier marked down so low now. Thier not...soothing tho. Two would probably be brain numbing. They also have a Sunon one that puts out 40CFM and 1 more dB for 50c more.
I'd say upgrade the Heatsinks to 80mm models and put some moderate RPM 80mm fans on, which will cool just as well as the best 60mm's, yet produce much less, lower pitched noise. But since your a fan of noise (though I'd let ya know, your the first one I've ever met), maybe you should upgrade something else.
Well if you want aesthetics, hit up SVC and pick and choose what you like.
If you want performance..get more RAM? I dont know how much you have now, so I cant tell with that, but its the easiest way to improve performance on a Dual rig.
What do you do on this machine? If you listen to music or movies, get a nice new pair of z-680's. Judging from your fondness of fan noise though, I'd make an assumption that your not.
Wireless keyboard/mouse is a good suggestion. The wireless is just a perk really, as Logitech's wireless series are some of the best keyboards I've ever used. Since your nto a gamer, the wireless mouse that comes with the Cordless combos may suit you very well. I suggest the Cordless Elite Duo.
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