Matt posted one that has a wrist strap in the hunting forum.
I personal use a TruBall Extreme with Talon head and you can attach a wrist strap to it.
I have been playing around with the new Mag-Tek release with thumb trigger and so far it is probably the smoothest release I have shot with no trigger travel before the release goes off and it does not have a spring that can weaken but instead it has a magnet that you can adjust the trigger poundage from a 3lb pull to a full 6lb pull.
It was designed by Ken Stanislawski so you know its a good release.
Here is a pic of the internals of the release.
