Kivit 0 Newbie Poster

A Client of mine needs to have a web application built that has all the basic feartures of a simple movie editor... There would be no uploading of videos, just selection of avalable clips and audio etc.

I'm most comfortable with actionscript 3, and have very basic knowledge of php and database stuff. And I usually figure out whatever i need to figure out... but this one seems like a biggie.

I guess I'm jsut reaching out for some advice. Where should I start? I dont want to end up runnig into a dead end.

Has anyone here done a similar project perhaps? is this even plausible?

Thanks for any help!