One other difference (besides the front suspension fork) is that the FX has different shifters. At least on the 7200 vx. 7200 FX. The FX has the trigger shifters you move with your thumb and forefinger, the non-fx has the grip shifters you twist with your wrist. Also, I can't remember this for sure, but it seems like the handlebar stem is different too.
Also, I don't know if this is relevant for you but the FX come in a women's model (not the same as a WSD) but it does have a slightly angled top tube and a women's saddle. The non-FX comes as a ladies stepthrough frame, totally different shape.
I'm waiting for my 7200 FX to arrive!!