I have purchased both actually. I actually haven't finished the dvd all the way through, I'm pretty sure I don't have too much left, but I have really enjoyed it. It helped my fiance and I decide to go with a custom, and now we definitely want to go all out. Before we were really timid about having a big wedding, but now we are planning on going all out. The DVD so far is mostly about how to decide on your wedding style, etc.
The book has also inspired some fun ideas, and I loved the wedding recaps towards the end, but I'd see if maybe there is a third edition coming out sometime soon.