Moving the viewing area around by putting the mouse cursor at the edge of the screen - for me, this makes the screen move craaaazy fast. Please add a "scroll speed" option.
You can change the pan speed (or disable edge panning) in the Game section of the Options.
Originally Posted by Sinister
I also find it slightly impractical to attack in melee from an angle where my character obscures the target. Could we have a button that "fades" the active character out and let's you select other targets/items more easily?
For now, zooming can help with that, or rotating the camera (scroll wheel or holding the middle mouse button down, respectively). With skills/spells you can use the portraits at the top of the screen to target opponents, but not for melee attacks.