Since jades have big leaves and grow so slowly, I would say that you will have a hard time to make a bonsai out of it and you end up with a normal size plant.

What you can do is shape it nicely as a tree, snapping off or cutting off the lower branches so it can grow a thick trunk over time. It depends on the size of the plant you have to start with, but let say you leave about 2 inches of trunk free of branches

Thanks for your help!

I don't do bonsai, but plenty of people on this forum do and they indeed work with Jade plants. Someone will probably pop in with advice. In the mean time, you can read up on the Bonsai Forum.

http://www.gardenweb.com/gardenweb/query/Jades/topic=bonsai

I understand the folks are friendly and happy to help. Good luck!