Two things came up at lunch that I thought I would share.
1. The Cincinnati Comic Expo is September 18. Details are available at their site.
2. If you are looking for a great price on poster prints and have a Sams Club membership, they produce pretty good results on a thick paper for only $9. (and that is a 20x30 print AND it was a one hour turnaround). Only issue is they don't do full bleed so you will get a white border.