Paint-Reveal - student project

I have many questions:

1. what is the proper set up and workflow for Premiere Pro CS5 and AfterEffects CS5, how to initially set up my video (size, type, etc).

2. Do i start in Premiere and go to AE or what's the proper setup?

3. Where do i begin on a paint-reveal effect (PP or AE?)?

4. How to properly export from one to another or use DL?