I'm going to get started on the A* stuff tomorrow. I should have read enough on it by this stage. It'll only take me a few minutes to load the guards in from the map file, and then I can get straight down to the pathfinding stuff.
I was thinking some more about that project idea I posted last night. I quite like it. After this game is finished I might write up spec and see whats required. It a very large project, and at most it'd make it a pet project. My games / engine really take priority.