I have bought PROAIM Track Dolly With 12Ft Straight Track 2 months back. I used it for one of my project and it gave me "WOW" results. The ability to pack the track in a kit that works with our system is great. The modular setup works great for our style of shooting - where we are in a lot of diverse locations and always packing and moving. it's pretty good, you should check it out! http://www.dvcity.com/dvshop/PROAIM-Track-Dolly-DL-223-With-12Ft-Straight-Track-DL-223-TRK.html