I was in Best Buy today (yep, I gave Home Depot a day off). Anyway, I noticed a box with what looked like a Sima screen picture on the side. The box was way too small to hold either the 8' or 12' versions, so I couldn't help but take a closer look. It turns out Sima has a 72" (6 foot) diagonal screen now available. I hadn't seen this before. Looks interesting (although small) in that they supply extra bases in order to raise the screen higher. This could be an option for those tight indoor locations. At $199 it's definitely cheaper than their other 2 sizes.
http://www.bestbuy.com/site/olspage....=1203815241750