OnlineDM
Adventurer
The table is a bit cluttered as we have the DM laptop and the player/projector laptop. The player laptop has a wireless mouse, so we pass it around as needed. I will say the best and worst thing we did was add laser pointers. Great for pointing at the image on the wall and having a discussion. Worst when you've just finished your turn and have a 25 minute wait till you go again.
We do roll dice. Maptools is only used for the map. It is awesome to have someone put down a wall of fire, and then draw it right on the map.
Out of curiosity, why are you using a separate laptop for the player view? Is it just so the players can move their own tokens rather than having to tell the DM via laser pointer where they want to go?
I personally just open a second instance of MapTool on my DM laptop, connect to the DM's instance via the LAN server option, and drag that "player" instance over to the projector "monitor" in full-screen mode. Of course, my players use minis to represent their characters rather than MapTool tokens, so they can just physically move their own characters around rather than needing a mouse.