I'm mainly talking to the people who try to spider the entire directory.  I have quite a bit of bandwidth so you shouldn't have to worry but I will be monitoring activity.  You're using resources from the game server machine if you download from interimut3d.

http://interimut3d.dfbgaming.com/ 
48GB 4,118 files

http://ut3demos.dfbgaming.com/list/
105GB 10,407 files