Daniela,
Welcome! I'd just like to add that since you've mentioned that you 1) will generally be on the GA floor 2) want to be low profile and 3) take photos and move around a bit, you should seriously consider some miniature omnis. On the floor, you'll generally be where the sound is loudest, so any crowd noise will be overwhelmed by the amplification of the PA. Cardioids are more directional, but if the crowd in front of you is rowdy, you will still get them on your recording. Since you want to be able to move around a bit, omnis will be much more forgiving of the movement. Since cardioids are directional, as you move, you will be constantly changing where your mics are pointed. This will result in a "phasing" of the recording as one mic or the other changes direction and "hears" a different angle of the PA. The Church omnis (11 or 14) are more than fine for this application, but for a bit more money you could go to the Countryman B3s and get a far superior result. Paired with a battery box, or a Church preamp, you would make great tapes that you'd be proud of. I have no idea what sckofelng is talking about with saying the Church preamps sound weird, they are incredibly neutral sounding, and don't color the sound at all IMHO. My best guess is that he is used to hearing recordings that are colored, and hence finds the truly neutral sound as weird. My low profile rig is B3>CA-ugly>M10 and if I had to sell all of my gear for financial reasons but wanted to keeping taping, this is the rig I would keep.