We have about 5 PCs down here and mine has somethning like 5 fans or something insane - your SUN box should be fine. At worst you're looking at a bit of white noise. I work in a netops center with a ton of servers (lot of rackmount lot of SUN) and if the combined fan noise wasnt bad enough we have those air circulation units that blow air up through the floor for additional cooling - sometimes I have to fight to stay awake amid all the shhhhhhhhh noise so I know it's a huge consideration for us big bipeds. I don't think what you're talking about will have any adverse effects - even if you have a vurtual wind-tunnel like this beast.