My cousin and I rigged up something very similar to what Nicahawk when I set the trusses for my garage.....ooopps, we are now calling it the barn since the garage will be attached to the new house.

I also made a "basket" for this set up and used it to set the roof shingles up on the barn. I can't remember if I did 2 or 3 bundles at a time.
Here are a couple of pics of it.
The first shot is what we used to hold the pole in the bucket. Second shot is the business end. We used a little short chain from the metal loops to lift the trusses. Third is what I had to put on the back of the
http://www.littlebluetractor.com/'s brother to keep it down. Tires weren't loaded at the time. Fourth shot is the trusses set in place. 10' side walls + about 4 or 5 to the top of the truss. At the front the ground sloped down about 18" from the rear so it was a pretty decent reach for a little tractor.