Basics
Move - left click on a spot on the map that is navigable
Attack - right click on an enemy

Camera
Camera Left - A
Camera Right- D
Camera Up - W
Camera Down - S
Zoom In - =
Zoom Out - - (minus sign)

Actions
Drink health - H
Drink mana - M
Pick up all items - Z
Activate Power (1-6) - press that number

Party Commands
Rampage - G
Mirror - F
Regroup - R
Chat Window (multiplayer) - ENTER

Gaming Options
Character Inventory - I
Journal - J
Main Menu - ESC
Cycle previous power - 0
Cycle next power - 9
Select a party member - F1 through F6
Increase Speed - CTRL/=
Decrease Speed - CTRL/-

Dungeon Siege 2 Walkthrough