Hey, I just finished my Track Dolly, and paired it up with my 35mm Adapter, Manfrotto Tripod, and HV20. I think it looks pretty promising... I may have to put something under the PVC pipe on rough pavement to make it roll smoother. Have a look, comments and criticisms are more then welcome.
[ame="http://www.youtube.com/watch?v=pLsqAIbEYb0&fmt=22"]YouTube - VimeoTest[/ame]