I don't mind the trackball per se; I just don't like it being so big! Of all the graphics programs I have, I like the interface of Vue's the best. I like the idea of having a usuable 4-window screen; which Poser doesn't really have. Yes, it does have a 4-window screen, it just isn't usuable in my opinion because of everything else getting in the way. Vue's interface does have a trackball, but it is small and out of the way. I also like the way it handles lights; at least I like it considerably more than Poser's. However, I do like the materials room in Poser 5 better than Vue's material editor. That may be because it is easier for me.