@scifigal - I had a hard time finding any information on who to call at the convention center. So, we just rented one from a local medical supply place. It was a lot cheaper than we thought it would be! It was $35 for two weeks, or $55 for a month. Although, that was a manual chair, not electric, and my poor husband had to wheel me around ALL weekend. Poor guys back is all sorts of sore and stiff now. Next year (if we have to wheel chair me again), I'm going to look at an electric one. We went to a restaurant one night, and my loving, great, fantastic, selfless husband pushed me two blocks down and three blocks up from the convention center. The three blocks up were UP HILL! I love that man!!
Also, are you a gamer? Or just scifi fan? I am a scifi fan, myself. You Trekkie, Star Wars fan, Babylonian, Whovian, or are you like me, and like them all?