DUAL SPORK -lvl 60 Advice/Comments welcome

Well first off this is my first character and i made it to merciless mode pretty easily I died maybe 5 times. My DPS seems to be doing well and my survivability is also making due. it was a slow start but i think this will work out well as i get better gear. The reason i am making this post is because i was wondering what you guys use for support gems and what gems should i be on the look out for.

this is my passive tree, I am level 60 and this is what i have done so far.


these are the skills i am currently using.

Fork- Faster Projectiles -Lightning Pen-Spark- Spell Totem ( DPS 155.6 + -40% lightning res)
Reduced Mana -Clarity -Discipline - Determinantion (571 total mana 326 in reserve with clarity+discipline and 42 mana regen)I don't have the proper mana to run Determination yet.
Conduction Curse (-30% Lightning Res)
Tempest Shield (I also don't run this spell because of the mana it cost)

As i mentioned i was wondering what you guys were using for support gems on your totems and what is the ideal support setup.

My gear is nothing special just rares with ele % ,lightning dmg % ,rare find etc etc.

So what do you guys think? please feel free to comment or suggest things that will help me progress further into end game content.