Enhance Shaman (Strictly DPS)

This build is stricly for DPS, therefore no arguments for raid perks such as shamanistic rage and reverberation which imho, 1 extra second on an interrupt that is the shortest CD across all classes is just overkill. I do raid in this build and i use my maelstroms to heal myself with greater healing wave to help the healer if necessary. I top recount charts in raids/heroics even when i had <350 iLvl. My iLvl is now 358 with a 2 piece set bonus and i have had no interest in changing specs.

Rotation

1- Unleash Elements >< Fire shock (If its a pull greater than 3-4 mobs i fireshock first, then Unleash elements to boost fire nova's damage)
2-If you are not in melee range after UE and FS, you can use ancestral grace and Lava Burst, dropping your totems right after the cast.
3- Lava Lash > Stormstrike
4- by this point your CD for earth shock should be up, use earth shock, unless you have 5 maelstroms, chain lightning is always a priority. (If multiple mobs, always set fireshock on a second and third target when it is up again, always followed by fire nova)

After this point it becomes a matter of priority:
-Never wait too long to use your maelstroms
-Use lava lash and stormstrike whenever they are up
- refreshing fireshock and using earth shock till fireshock is about to wear off
- fire nova does not work in single target fights
- when obstacles block your melee, use Ancestral grace > lava burst and lightning bolts. (Heal yourself if you took some aoe damage)

Notes
Be aware of the buffs from classes in the party to set up your totems.
SoE, Searing, Health and WF should be your defaults (w/ Healing totem glyph to +resistances)
If all buffs are provided already you can use stoneclaw and grounding WORST CASE. They arent always helpful but helps stun a target and sometimes nullify a high dmg magic attack on your tank assuming he has hate on everything.

Follow this and you will put elemental shamans to shame. :)