I just discovered a new FPV Simulator and it's free.
It's created and proposed by the blog FPV PASSION.
In my opinion, it is a cool simulator for everybody who wants to discover FPV !
Also very nice for flight preparation and line of sight checks!!
The development is based on the Google Earth Plugin so you can fly over 3D Cities.
You can access the simulator here : http://www.fpv-passion.fr/simulator/