I am also thinking of getting Izzie (6 months) into some agility classes. She runs laps in the back yard like no other.
She can clear the baby gate in the hallway with no problem... She just started jumped over her xpen too. (Our xpen is 4 feet tall!!!) I worry about her little joints too...
I have to figure out where the nearest classes are now that I'm spending the summer in Southern California.