umm, my 360 just started making these buzzing noises today

how long have you had the 360? if you broke the seal your fucked, but there is a warranty on it so send it in..

You said a buzzing noise? have you done any modding? i would say its the fan, or something is loose in the 360 that needs to be tightened.

I never had the problem so i couldn't tell, but i know that the 360 tends to overheat and can cause problems. Check the 360 FAQ on the site.
 
Well, I am actually fucking curious.

I've wanted to buy a 360 but are they really that bad?

No! It rules I think. Good games and high capacity and everything.

Even though it kinda sounds like a ... thing that makes very loud hissing noises... There enough people on this board to fill me in if they want on that.
 
i like my 360; it died on me once but Micro$oft sent me a brand new one free.

this was prior to the extension of the warranty too btw.