this dolly has rollerblade wheels. http://www.youtube.com/watch?v=juQY_9KvHMs&NR=1
http://www.youtube.com/watch?v=LInj6nPP1pA&feature=related
here is a prime example of a home cheapo rigger. notice that these are kids building these things.
http://www.youtube.com/watch?v=0Pvfj0Q_MDs&NR=1
want cheaper yet? http://www.youtube.com/watch?v=PIkL2Anv1uk&feature=related
your only limited to your own creative mojo.
and 1 more this ones a little ghetto but none the less you can see my point.
http://www.youtube.com/watch?v=9nAC6ztIUbQ&feature=related
oh and this 1 i lmfao.
http://www.youtube.com/watch?v=VWN9TvweZc8&feature=related
http://www.youtube.com/watch?v=n_vvQ8dR2z8&feature=related
this 1 is sick! carbon fiber is lighter then alloy. mounted to a track dolly this pan and tilt rig would do it all.
http://www.youtube.com/watch?v=YyeCTs5MJOs&NR=1&feature=fvwp