So I've been asked by some friends of mine to record their band tomorrow. It's a live set, nothing fancy, just in the cafeteria at school. They don't want a professional recording or anything, I'm just recording it to my MP3 player so that they have a recorded copy. I know I should record in WAV format to get the best quality, and I'll use the external mic that came with the player to ensure that I don't pick up any hard drive noise (the internal mic picks it up a bit). What I really want is some tips on mic placement and such. It's a pretty "boomy" room (mostly concrete and glass with tiled floors), and there will likely be a fair bit of background noise. The mic is pretty sensitive, so I don't want too much audience chatter to show up in the recording. I was thinking of maybe mounting the mic up on a mic stand above the crowd, fairly near the band. Any suggestions from people who have experience with these sorts of things?