I did the same but "unfortunately" my area in Belgium is actually modeled in detail in Google Earth and going from that to the AI interpolation in MS Flight Sim

I did the same but "unfortunately" my area in Belgium is actually modeled in detail in Google Earth and going from that to the AI interpolation in MS Flight Sim was a let down after the beautiful trailers. But really it's an impressive game, I just hope Bing Maps will continue to add more detailed areas (or someone is motivated enough to write a Google Earth plugin).