Suggestions/Tips for PVP in BG's and Arena?

So I got my shammies to 19 (LOL) and decided I was going to try WSG out with the setup just to see how they did.

All I can say is WOW I suck!!!

I use the leaderless setup but pretty much got owned (I know most of them in there are twinks anyways but still). When anyone would attack my main my slaves would auto follow but I could never get them into the proper positions to cast. (I was casting with my main while melee was owning him but moving him around with my mouse, but my slaves were always facing the wrong way or something and I swear I really couldn't kill anything with anything other then Fire Nova totem/Shocks)

Anyone have any tips they have learned. I know I'm going to really have to crash course it badly but any nifty tips would be nice.

I thought about maybe just going 5 Frost Shock -> Drop Fire Nova when melee is on me -> Earthbind and kite turn/casting?

tip: don't play low level brackets unless you're doing 5 twinked hunters