I believe I own the first version of Flight Simulator X. I love my a/c selection but am tired of just the normal selection. I tried adding on Flight Deck 4 but that slowed my computer down. I figure downloading a/c individually would be a better option for me in my case. Have any of you had good experience with Simviation. What benefits do you get for paying $19-20 per year?? If you download an a/c do you get an a/c like one that comes with flight simulator meaning all the windows such as throttle, radios, overhead, etc....??? I am new to this but love FSX.