I've just done a load of Yahoo tracing around the military base at Rendlesham Forrest. It's looking rather good now with most of the buildings and roads added in though I don't suppose anybody will be allowed in to check it; sometimes it wasn't clear if a boxy thing was a building or something else, in which case I just left it out.

Somebody in the area might want to tweak the landuse=military tagged area - I added in what looked like military land, but obviously that's hard to tell from Yahoo imagery.