There are some great ideas here guys. I'm leaning towards using the utility trailer because it's low to the ground and has ramps that we can walk it down. I'm thinking I'll strap it to an appliance dolly and the two of us can just walk it down <fingers crossed>.
While it's in the trailer, we'll use ratchet straps to make attach the dolly and saw tightly to the sides.
I also have a couple of moving dollies that I can use to build a sled for the thing with some 2x's and plywood sheets, but then I'd run into trouble getting it off once it was in the garage. If the moving dolly doesn't look like it will work, then I'll probably go that route. Worst case, I can break it down completely once it's home and lift it off the dolly piece by piece, but I'll avoid that if possible.
Wish me luck and I'll post some pics of my new baby once I get her home.
Cheers!
Rob