Ultimatly everyone has a different style of filming, editing, and riding which needs to all be suited together to come together and make a good all round video
I advise watching a number of videos of contrasting styles and seeing which best matches your riding style and tastes
I highly recomend watching
Any/all of Rowan John's webvids
Ben Rowland's videos
Rich Pearsons 'Street training' series
Damon Watsons vids
Ben Slingers newest vid (it should still be fairly recent in the video thread)
The NBR videos
Wherestheseat.com videos
All of these vids showcase completly different riding, filming and editing styles but are all awesome to watch.
Make a list of what you like from each of the films and try and use those touches in what you make.
Take note of their use of:
Intro/outro's
changes of pace
camera angles
Use of any panning shots
Breaks in the riding
Music - both rowan and wts.com's vids use pretty alternative music but it always works well
Also, make a vidoe as best you can, and then just ask for as much advice on it as possible. Its easier to make constructie critisism on something weve seen rather than telling you what to do from scratch without having seen your riding.