My dad just got one of these for his birthday. http://www.leevalley.com/en/Wood/page.aspx?cat=2,44639&p=77362 It seems a little flimsy, but a heavy duty one could be useful. I know a drummer who was a mechanic that took one of those orange dollys that turns into a cart and welded a plate onto the axle. He had been using it weekly for 30 years. It should look more like this.