I use the Nostromo N52 and I've bound 1 action to each main direction on the directional pad. Up is the Interact with target button, down is the backpedal button, left is the assist macro and right is my follow macro. This works for me in either melee or ranged situations as you always have your thumb resting on the D-pad. I quickly hit the assist and follow macros to make sure the slave is on target then when I'm ready to engage I'll hit the interact with target and quickly follow with the backpedal and the hunter will be facing the right direction. If the target moves, I just hit up and down quickly. simple enough for me.

With my current team of rogue/pally.. I'll stealth the rogue, backpedal the pally then when I engage with the rogue (cheap shot, etc) I hit the interact button for the pally so the pally comes running in and now both toons are in melee .. if the target moves or changes, a couple of quick hits on the Dpad and the pally is pointing in the right direction.