[ert]

I'm planning a wedding for this fall and I need some recommendations for quality sound / djs, specifically in the Chicago area if possible. Alternately, suggestions on what to look for when hiring a wedding dj with respect to sound quality would be helpful. The audio setup in the last several weddings I've attended consisted of some guy with a macbook and a pair of crap PA loudspeakers and the end result is what you can imagine.
 
I know that I'm not going to get a high end audiophile sound system for a wedding, but it would be nice to know what to look for to get the best sound possible.
 
thanks!