ActionScript 3.0 :: Create A Top-down Scroller?

I'm working on a small project and I'd like the player to be able to explore areas outside of just the 800x600 window, AKA scrolling is necessary.

I'm not working in the Flash IDE, I'm just writing actionscript in FlashDevelop.

Anyway, I'm trying to think of a clean way to scroll the map and all associated objects when the player gets near the edge of the screen.

Here's how my app is currently set up:

I've got my Main object, which is the parent app.

Under that, I have a 'DudeHandler' object, which will contain all the players. At the moment it just contains the player, and another test guy in order to see the effects of scrolling.

Then I have the 'Soldier' object, which is an individual player.

In a perfect world, when the player got near the edge of the screen, I'd just move the DudeHandler object, but I guess my main problem is trying to find out the actual screen coordinates of the player, since the x and y vars point to the position relative within the Dudehandler object, if that makes any sense.