i just built this case for mine.

built from square aluminum tubing, angle aluminum and plexi, hot glue and rivets

http://c0848462.cdn.cloudfiles.rackspacecloud.com/2022104675c74d4f47a458478efde1f87413b98e0b.png

i put plexi on the sides and have a house fan on the front blowing through the case and out a window.  adding the plexi sides cut the noise by 70% and i get no hot air in my apartment.

I am going to print some end caps for the top out of ABS and then hot glue some plexi to them for the top.