Hey, I know you're full and all (not really looking for a spot... Well I am, but I prefer text to voice chat, anyhow), but I saw that you might be looking at a few ideas for using a map. I've been using a very basic map system on and off for a few years now and I thought you might want to check it out. It's called editgrid.com. Here is a link to one of the old grids I used for D&D. A buddy of mine also used this same system for doing runs.
http://www.editgrid.com/user/seether/Copy_of_Plot_2edit: Here is his, though it's definitely not as easy on the eyes:
http://www.editgrid.com/user/green_elf/Corp_Espionage_1