I think micro mark has the spring type benders. Next time I'm at the LHS (soon, I need thin sheet styrene) I'll get the brand name so you can google it.
Here's a mod to the JT you'll like, Greg. Way off topic, but it's my thread so i guess i can hijack it if I want to, eh?
https://www.youtube.com/watch?v=Wqz3GuxjZKI