To people trying to bind right/left mouse buttons check this out:
It's a guide to binding shift+right-click to /petattack mouseover, but should also teach you how to bind macros and stuff to mouse-clicks.
Again all well and good for click casting, but this is in regards to targets. What I'm looking for, is the abilty to use my pvp trinket simply by shift-rightclicking anywhere on my screen. Again click2cast can do it for berserker rage, but cant do it for macros (which is how i would have to use my pvp trinket).