MC Frontalot was as great as I had hoped. MC Lars had one fun song (If I Had a Time Machine, That Would Be Fresh) but otherwise was as much of a tool as I expected. We were late and missed Optimus Rhyme because of a birthday dinner, and were told they were awesome. (Bought their CD -- awesomeness confirmed.) Ran into Nate Sands, K-Rock, Roger* and Greg, so comforted that we are not the only nerds in Chicago. Took pictures.
* Who disagrees on the toolness of MC Lars. So, hey, maybe I'm wrong. (I'm not.)