I was looking for the exact same thing- a bracket stand. I think it makes all the sense in the world if you 1) hunt a lot, 2) hunt the same areas all season but don't want to get your stands stolen.

After doing some research, I was debating between the Chippewa Wedge-Lock and the Screaming Eagle. Then, by accident, I realized the Lone Wolf also has a bracket option (they do a piss poor job of marketing this fact). I think the Lone Wolf is by far the nicest bracket stand. It's the lightest, has lots of nice features (like the built in bow holder), and you can custom order the seat height. They have a very loyal following- everyone who uses them seems to love them. I'm getting one stand and 5 or 6 brackets for next season...