Bill,
I can highly recommend the Behringers. I have a 1202 FX Pro ($149.) and a 1222 FX Pro ($169.)
If you don't need effects, the 802 is around $50.!
Also Alesis has a 6-channel with effects for $99. and it is excellent.
There are several threads indicating the Logitech system is more than adequate for up to 75-100 people. I have two of them now, but not sure why I got the second!
DonM

[This message has been edited by DonM (edited 11-09-2004).]