Boo,

Regarding miking the sax, the best way I've found for alto and tenor is to use a pair of microphones. One is placed near the bell while the other is placed relatively close to the body of the instrument. Then try to mix a good balance between these two using two separate inputs of the mixer or recording device. If you can get a couple of good clip-on mics then it offers you a little more freedom to move around as you play.

If you just mic the bell you'll notice a sharp increase in level (possibly to the point of distortion) when you play low C, B and Bbs (closing the entire tube).

I ran across a simple little article with some diagrams which may be of help.
http://www.marysden.com/mic%20placement.htm