I got the first round of mods for my Shuttle box yesterday - new fans for the PSU and heatpipe, and new fan guards. I’ve fitted the big fan, with OK results. I think I’ll need to do both, and do a little bit of hacksawing before the benefits are really felt (supposedly a lot of the noise is air forcing it’s way through the punched-out fan grill). I’m sure that the video card will seem noisy then. The only way to make these things truly quiet is to avoid the fans altogether, which isn’t really practical with an Athlon XP2700.