I have two of the Zoom units, the Zoom H2, and the H4n. They work great!
The "new" version of the H2 is the H2n.
The H4n is much bigger, but has much better mics in it. You can do a quad-track recording if you want with the 4n, 2 channels off the mixer, and 2 channels recording crowd noise. Kind of neat!
I think the M-Audio unit was discontinued.