I think that when we have both mouse buttons pressed the toon must start run / walk whatever is our move mode at the moment . I think it will help a lot.
Using the bug tracker, you are able to get to the suggestion tracker not sure if this is the OFFICIAL location, but it is at least up and running for now.
I'd like to see mouse movement enabled as well...I've gotten used to it in other games and like the freedom it provides. Mouse movement+keyboard shortcuts for other actions seem to work real well for me at least...