Rave for Q-fan

Even though I have built several computers in the past, I've never turned on fan speed management on a desktop before. Attempts of fan training on my laptop has not been very successful, as that thing just run hot all the time. On my new tower though, the Asus Q-Fan seem to work wonders. With Q-Fan on, PC probe II shows the fan running at 1400rpm, rather than the stock 2600 rpm. The noise reduction is orders of magnitude. Now the noise is hardly noticable on day time, but still too loud to sleep with the tower on. Now if I figure out a way to reduce that, maybe I can finally have tower on 24/7...