click to move and mouse look are two seperate things
I use click to move often and mouse look.
I had to bind another key for mouse look, and it worked fine.
The problems I have with click to move is some times the terrain isn't level and I click in the distance and end up clicking on top of the hill I'm on.
Trying to move around doors I get the same problem. I wouldn't even consider it a problem though, cause it is easy to just use the move keys to move around the door. Click to move is really helpful while chatting. I bound it once to only mouse two, instead of ctrl mouse 2. It didn't work so well with talking to npcs, shopping, training, etc.
I never tried binding click to move to mouse 3. I'm going to log in and try it.
-Update: No dice, it didn't work
-Double Update - it worked after I restarted the game. Let me tell you, this is sweet using mouse run like that. I can now type and run at the same time.