I have a Linhof Technika V 23b, which is another option--mainly for those times when I would really rather be using a larger camera, but can't for practical reasons. If you're looking to shoot landscapes, a camera with movements is a big advantage, because it allows you to control the position of the horizon while keeping the trees straight. Of course you can also control the plane of focus and do other things with a view camera, but just controlling the horizon and keeping the lines straight are basic to landscape photography.

I also think it pays to move up in format when you want to go wide, because a small format won't be as good at rendering all the information that a wide lens can take in when you're going for the big landscape.