I agree with TWB.
You should be creating tricks for the effect, not because you need more tricks. It's like Eric Mead's introductions to one of the AoA books. He explains how he couldn't create any magic tricks, so he talked to PH and PH asked why he needed to make new tricks, when he could perform old ones. And I doubt anyone would deny that Mead is not a successful magician.
This is a roundabout way to tell you that unless you want a new EFFECT, you really don't need to create new tricks. perfect the ones you already know, and you will be fine.
And when you do get some more money DON'T BUY MOVIES. Movies are like the fast food of magic. They are fast, easy and convinient, but they make you feel like crap later. Think about it. A DVD is worth the same amount as a book, but with MUCH less content. it's a fast and easy way to learn, but it is not cost effective as a magician.
just my $ .02
--zach