x5 Shaman PvP

[Ñightsham]

I've just started PvP boxing with 5 elemental shamans (lvl 85's with entry level bloodthirsty gear) and am seeking some advice on how some of you have your most essential macros/click bars setup.

I use ISBoxer and only have a few click bars setup so far. (Thunderstorm, Cleanse Spirit & Purge which is basically a round robin type of setup)
I'm not sure how to implement Hex or chain heal using the different toons or whether or not I should use "mouseover" to target.
I have a hot bar setup to include the elemental totems drops as well as staggering the tremor totems. I'm only playing AV right now until I get a little more proficient.

Any info/advice would be greatly appreciated.