I like to give a whole backstrap a nice coat of Rasberry Chipotle Sauce, then toss it on the smoker for a few hours. If you can't find Rasberry Chipotle(or have never tried it) here is a link for a pretty good brand.
http://www.salsasetc.com/catalog/b-115.html
It's wonderfull with any kind of game, or mix it 50/50 with cream cheese and spread on crackers.