Looking to get a rapidly increasing or decreasing number to work into a text graphic... picture the "the current nat'l debt is $_______" billboard that counts up rapidly, range would ideally be from single to 10 digits.

Is there anything available for or already in FCP, Motion, or AE CS3 that can do this? I can only begin to imagine what a PIA this would be to keyframe...

In AE use the numbers filter

that only seem to go up to 1000

I guess I could string together 4 of them with commas...

...or do I not need to?

Mine goes to 30,000. But yes anything after that I just string together.