I'd be interested in this, as well! I don't know if you saw my post about accessories for the HB, but you can get great things from Babies R Us (Toys R Us) in the stroller accessory section. I got a drink holder, storage bag.....they are made to go on the handle of a stroller but they work great...
I would like a good metal cart for CDE's that has good shock absorbtion. The Pacific Smart Cart is no longer manufactured which would have been my first choice. My miniature horse is 36" and is green so I can't use my HyperBike with her yet. I am 5'8" with long legs and I'm not skinny, about...