All good advice! I really like the idea of running natural gas in there rather than propane, especially since I wouldn't have to convert as much of my equipment. The electrical panel is in the garage as well, so if I needed to wire it for electric it would be really easy, and the water line comes in there as well. Lots of easy access for me!
Sadly the gas hasn't been run from the street to the house yet, so we'll have to do that down the road at some point, and I'll make a point to run lines in there when we do that.