About camera mounts, I bought one of these.
ChaseCam, Your Source for Video at Speed
the SM31 Camcorder Window Mount, about half-way down the page
It works extremely well. I am confident enough in it that I've stuck it to my roof, trunk lid, back window, etc at speeds up to 100 mph and I think it'd be good for quite a bit more.
And of course it also works well inside the car.