Hi, I have moving camera animation, very simple, made in max, showing a balconie. The camera starts looking right and rotating until it look left, in a slow speed.
I would like to add, using after effects, a moving person, or walking person in this secuence.
I'm very new at aftereffects, but i imagine i need a mov file with this moving person, with the alpha channel saved in it.
I would need a tutorial to do that, but also i would like to know if there is any place in internet, where i can buy and/or download these moving objects to be applied en my animations or even in still images.

thanks a lot in advance