I would also consider the Atomic Tracker (Salomon Guardian) as an option. I own a paid of the Marker Dukes and a pair of the Atomic Trackers and the trackers ski way better and tour just as well. In fact, you will not have to get out of the binding to switch into tour mode on the Trackers. This is my everyday binding and I end up doing about 15 day tours a year using my AT setup. In my opinion, there is not a better skiing AT binding then the Guardian's/Trackers.
The Fritschi's have a great stride for touring; however, the develop a ton of slop for the downhill. There is a big difference between the Fritschi's and the Baron's/Dukes on the downhill and an even bigger difference when you compare them to the Trackers/Guardians. Bottom line, if you are going to use this binding for mostly resort skiing with some "sidecountry" laps and an occational backcountry tour, then I would go with the Tracker's/Guardians (assuming the downhill is more important). If you are going to be doing mostly touring and not using the binding for a ton of resort skiing, then I would go with the Fritschi's (Assuming you cannot afford the Dynafits). Just my two cents after using all of the above bindings.
Side note: Tracker/Guardians are not compatiable with Tech Soles according to their specs