I did this a couple of months ago for family and friends that decided to try elemental, but eventually they liked more enhancement and stick with it, with one of my macros of course (link). Basically goes through a rotation
and in between few chain lightnings and pop some cooldowns. Lazy macro for you!
If you need to aoe just hold a modifier and hit the macro.
/castsequence [mod]Chain Lightning;reset=9 Call of the Elements,null /castsequence Lightning Bolt /castsequence reset=9 Flame Shock,Unleash Elements,Lava Burst,Earth Shock,Lava Burst /cast Elemental Mastery /use 13 /use 14
UPDATED June 6, 2011: Revised and reworded the code to make it spammable without locking up and compliance with the new Fire Nova spell.
UPDATED January 27, 2012: Replaced Fire Nova with Chain Lightning for the modifier, Chain Lightning is the primary AoE.