Garage Heater

I could really do with a garage heater right about now. My garage is not so much a place for giving cover for my cars but more a work room for my hobbies. I even have my computer and TV in my garage. I spend a lot of time in my garage turned work room and now with the weather turning cold the garage is not going to be a pleasant place to be! I think a garage heater would be nice because then I won't have to leave the door from the garage to my dining room open so I could let some warm air in. It would be nice also not to have really warm clothing on just so I could work in the garage!