OK, I'm being lazy. I just posted this on another thread so I'll just paste it here.
I bought this blind last year after checking out a bunch of different models, but not wanting to break the bank on a Double Bull.
http://www.ameristep.com/blinds/brickhouse.html
It offers 360 degree shooting and veiwing and uses magnets to hold up the blackout interior so you can easily raise and lower window areas without making noise. I wish I had this blind on my turkey hunt last year because if I had we would have gotten the kill on film. As it was the bird came in behind us and I was only able to get one window open to shoot through so the camera man couldn't get the bird on film.
This blind has a lot of bang for the buck.