Pacman game

Hi,
I am about to start making a pacman game. I wondered if anyone had any cool tutorials or anything that might help.

I was wondering whether I should use a game engine or make the game myself?

I am a little inexperienced using AS3.0 but I am pretty confident using AS2.0 would this project be a suitable project to use AS3.0?

Just thought I would see if anyone had any suggestions, cheers.

Stephen