I think it’s a great and noble task that the BOINC project is performing. I just don’t feel like using it at home; and here’s the reason – I only have speed switching processors. When the CPU is kicking away at this work all the fans run full tilt and things get very noisy. I like the quiet; in fact most of the time I use a nifty tool called SpeedSwitch XP, which allows me to customize the frequency scaling policy of my laptop. When not doing anything CPU intensive I leave it locked on Max Battery, which restricts the speed to the minimum, and thus keeps the fans off most of the time.