The Magic Cafe has some good threads on the subject. I'm in a bit of a hurry right now, but some dvds that come to mind are Extreme Rubberband Magic and Jumper, both of which are by Joe Rindfleisch. I've heard good things about Dan Harlan's dvds on rubberband magic, but Crazy Man's Handcuffs is my go to rubberband trick, which you HAVE to learn. It blows peoples minds, and it's actually the trick that got me into magic. Marcus Eddie has some great stuff on Ellusionist and Theory11, too. Flush looks ok, but in my opinion, Link by Nabil Murday is still the best. Unfortunately, it's sold out everywhere. Touch by Hanson Chein is also a dvd (on Ellusionist) that I highly recommend.