Although I am a procrastinator I do have standards: I feel that nothing helps sell a scene as much as a nice looking map.
RPG Mapshare is a wonderful place for finding all sorts of maps. Including this Camp 1 which would be good for setting an ambush scene.
Dungjinni is a nice application for doing pretty maps fairly quickly and has a fantastic user community that is continually producing mind blowing art. With a bit of quick searching I found this map that I can use for the nest/temple transition. Here is one for a deeper forest encounter. Given that I have un-exercised drawing talent that is not quite up to stick figures I managed to produce this in about 15 min using the stock art that comes with Dungjinni.
There is also the Cartographers Guild that appears to have a wealth of ready to use maps and more mapping tips than you can shake a stick at (though you will need a login to see many of them).