For pve movement I've set up the following keymaps:

1. Modifier + wasd - moves the team apart from the tank in the respective directions.
2. Keybind for moving slave 1 to the left, 2 to the right, 3 forward for quick spreading in aoe damage situations.
3. IWT + move backwards to face ranged toons towards the tanks target.
4. Follow tank.

I start every pull with parking my dpsers and healer and collecting them at the end of it. I found that it helps loads not to use modifiers for movement keys whenever possible, makes movement easier while dpsing and healing but i guess that depends on how you've set up your binds.