Check out the Keystoker Koker and Leisure Line HyFire II. I just finished my first year with the Koker---built like a tank, cranks out the heat, and reasonably priced too. I've also heard rave reviews about the LL HyFire II. NOTE: I believe the HyFire I has been discontinued. I also recommend the LL "solution" for integrating the furnace you select with your existing duct work: http://www.leisurelinestoves.com/1904137.html
I went with a more complicated solution (i.e.: professionally installed expensive cold air return and hot air supply) which I'm really not happy with. I'll be converting my Koker to the LL suggested solution over the summer.
You can't miss with either the Koker or HyFire II.