Judging by your… um, treatment it sounds like you've got a very ambitious project for an independent fan film. The type of FX rendering that you're looking for isn't going to come to you cheap, you'll have to invest in some off the shelf software like After Effects, or Apple's new design program which will set you back a couple hundred clams. Take a look over on the Fan Film area over at
theforce.net they've actually got great resources as to how to CGI elements into your films.
But it'll cost ya.
Maybe you might want to do as Dan had to do with the GB script, look at it again and figure out how you can do it- well, cheaper.