I think really any of the first 3 (Buffer, Motorcycle, or Photography) would be a great addition!
I would hate to see the "Buffer" section be limited to a Porter Cable 7424 even though that is what I use. Having that section definately could answer questions and offer tips and experiences in one location. And give insights on other products to look at or stay away from.
Photography might eat a lot of bandwidth up, but I think we all love the pics especially before and after or problems needing suggestions.
Motorcycles aren't something I deal with, but have had several people ask about them. I would be interested in that even though my vote didn't go there!
Maybe to free up some space some less used topics could be merged or eliminated. "Man's Sanctuary" doesn't seem to have much traffic.
