I don't find the 767 to be too hard on fps.. It's heavier on the fps than any of the other 767's out there, but not by much.. It's far more detailed visually and it's simulated quite well, although there is one other that some say has better system simulation but lacks a little in the visual aspect.

Personally I've tried them both, and I enjoy the CS767 more. The reason for that is that the visual experience is much better, there are more variants available and there is nothing I miss in the system simulation compared to the other one..

One thing is for sure, I'm gonna get the CS737 along with several expansions as soon as the base pack is complete with interior and all. I love to fly these old airplanes! :) I'm probably gonna go for the 777 as well, due to it's beauty... :)