I've got this one
http://www.ameristep.com/blinds/doghousetsc.html and you can usually find them pretty cheap. The TSC is a little larger than the regular one. You can get 2 guys in it and its big enough to bow hunt from. I took my son out last year and bagged my first gobbler with a bow and should have had a couple more. It comes with a backpack and is pretty easy to tote and set up. Don't read the instructions and you'll be able to take it down pretty fast after a few tries.
