hi, i have a xps 400, and i just got a new desk. anyway, there is a space underneath for a tower to sit, that has a door in front of it to close. the back and sides are closed off except for a hole in the rear about 10 inches long and 2 inches wide to put wires through.this is good because the xps can be noisy. but when i open the door after a while it feels like a sauna in there and the fan is on and the top and sides of the tower are hot. but it cools down a bit after a while with the door open and the comp cools down and the fans slow down. i talked to a dell guy online today and he said it was ok. so do you think my comp is in danger of overheating? how can i check the computer's temperature? should i keep a thermometer in there? and if so what temp is too high for the computer to be subjected to? if it is getting too hot i can take the back part off to add ventilation. here are a couple pics and thank you for your time and help.