If you are just starting off go with the dolly, cheap, effective and handy. I still load my 8ft box on the truck and jam pack the car...for maximum results.

I agree with what DW said, I'd like to add that it does take some time to get used to it. Mine does not like backing up, too hard on the straps and it does not like to make sharp turns either.

And when you are empty, they jump all over the road (no suspension). I've witnessed mine jump about 6ft in the air going over a rail crossing.