I too am from the Chicago area. North Aurora to be exact. I stopped collecting a little while ago and am now in the process of selling my collection. I'll be keeping most the newer systems and my cabs though.

Anyways, for all you interested. The BEST place that I have found for used NES and sometimes Genny, PSX, N64, and DC games is Disc Replay. I just picked up Dragon Warrior 3 & 4 there CIB for $15 each. =)

good luck