welcome back, I was just like you, out of it for 20 yrs. my kids suggested gettin a plane and that was the spark. I fly better now then before. maturity I guess. yes alot has changed, I didnt have any old equipment to deal with on the radio end of it, I went witht the new 2.4 system. those engines you have should still work. and you allready have a hanger full of kits. what blew me away is the 3d flying, have you seen that yet? man what a thrill to watch! who knew planes could fly like that!