I can provide some details now, and am getting more from my friend:
The sale will be Saturday April 2, 2005. The actual location is Limestone High school in Bartonville Illinois, which is a little 'burb just south of Peoria. The actual address so you can get directions off mapquest is 4201 South Airport Road, Bartonville Illinois 61607. It will be in the cafeteria on the south side of the building. They have these twice a year, and have had to change to this location from where they have had it for years, so their attendance is down, and equipment has been going cheap. They open around 8 to take in stuff to sell, and I will have to get back to you on when the auction actually starts, and usually goes until afternoon..2ish or later depending on the amount of stuff. There are breeders that bring stock to sell. I got a nice bristlenose pleco there once...couldn't find one in any of the local LFS.
I'll post more info as I get it.