David rented us two Segways for my 30th birthday. boy, that was fun! thanks man, I really digged it!
(although I almost got run over by a truck when turning left instead of turning right. *phew*)
Funny thing is, you get really quickly used to the speed, thinking all the time, speeeed up, pleeease. just to notice how fast you have really been when you have to walk (yikes!) again. 
ok, ‘nouf said. here are the clips:
encounter of two segways 
twist and shout! yeah baby! 
(heavily distorted image, youtube, get an update!)
the segway offroad model, notice the bigger wheels
(heavily distorted image, youtube, get an update!)