Glide Gear has offered to give away one of their Hybrid Track Dolly systems that can interchange wheels from basic rolling casters (for floors), or into a set of track casters for various types of pipe tracks. Included in this product giveaway from Glide Gear is also a set of 12 ft. Aluminum tracks that break down in 4ft sections and come with it's own carry bag. The video (below) shows an example of these products.
This combination of folding Tripod Dolly + Portable Aluminum Track is perfect for those looking for up to 12ft of long range camera movement. The track comes with 3 portable 4-ft sections that are assembled for each side, and lock into end clamps keeping the 1.25" diameter tracks at 28" apart. Each kit comes with their own travel bags. If you're looking for a chance to score one FREE, Register for this Product Giveaway (found here).