It's been annoying me but I didn't realize how bad it was until my ears were ringing the other night lying in bed. Not good.
I've been doing a lot of silent-PC research and have been comparing the cost of upgrading my current machine to silent parts versus just building a new silent system.... it's close enough that I'm just going to build a new machine.
But, I'm not going to start until I'm back from Vegas, so for the next couple days I just have to suffer. And today it seems louder than ever.
I guess I'll switch to the laptop for awhile, which involves installing everything on it again. (it's stock OS X... without any development stuff. bleh.)