Hi there. I think that it would be great if the developed map (Still, I know you're not there yet) was entirely vectorized. When finished, this could allow easy community adds to the city (FM space for example), easy search for specific places, mission planning, etc...
I've done a little work (for fun - more like to learn Inkscape) tonight on a vector version of the Ambush map based on the thief map and Sxerks' measurements.
PNG render of the 4 layer (rivers, roads, buildings, outer buildings) SVG file :
With some fancy textures :
(bigger version here)
The SVG version : here