I highly recommend watching this video. The guy goes through several bindings for keyboard and mouse and it can make a big difference in how you play. The neat thing about the options available in keyboard binding is that you can either tap, press, hold and long hold each key, effectively making a single key act as 4 different functions.
For example, I have space bar set press for diving but hold for climbing. For mouse right click, press for first person view aiming and long press for third person aiming.
For strategems, setting the direction arrows instead of WASD allow you to keep moving.