Ken, you are in fact in the mosh pit. The general admission means you get a wrist band on the entry of the show that gets you to the floor where there are no seats. You can get all the way up to the stage without any probs. Moshing is fun as hell. I have been to some of the hardest shows and moshed my ass off.
Pantera, White Zombie, Megadeath, coal chamber to name a few. The best part about the floor in general and the pit specifically is that yes you get to beat the shit out of people by running into each other and pushing and shoving. However, it is also a very cool and nice area to be in also. Everyone out there is hitting the shit out of each other but everyone pays attention to people. If someone is hurt or falls down people help them up and get them on their way. I guess it is a civilized form of masacism. They are fun though. Disturbed is good live too. Make sure to drink a lot of water, the pit and floor area is typically the hottest part of the concert and it is like 100 degrees or so down there.
Also, the UIC doesnt sell any liquor since it is a college campus so drink up before the show. Enjoy.