Valdazi

So I was really wanting to build a Valakut list with some Eldrazi it. I was reading Gerry T's article yesterday, which had a sweet Valakut list in it. I thought I would make some changes and find a way to put some Eldrazi in it. So far I am happy with the changes. My only problem has been figuring out a decent sideboard plan. I havent decided if I want to side into a full on Eldrazi deck or stay with the Valakut plan. I will give you both options and you can do what you want with them.
Main
     3 Cultivate
     3 Eldrazi Temple
     2 Evolving Wilds
     4 Explore
     5 Forest
     1 Inferno Titan
     1 Kozilek, Butcher of Truth
     3 Lightning Bolt
     4 Lotus Cobra
     3 Misty Rainforest
     9 Mountain
     2 Oracle of Mul Daya
     4 Overgrown Battlement
     4 Primeval Titan
     3 Raging Ravine
     4 Summoning Trap
     1 Ulamog, the Infinite Gyre
     4 Valakut, the Molten Pinnacle
Side1- Valakut plan
      1 Lightning Bolt
      3 Natures Claim
      3 Arc Trail
      4 Obstinate Baloth
      2 Green Sun's Zenith
      2 Thrun, the Last Troll
Side2- Eldazi plan
     1 Lightning Bolt
     1 Eldrazi Temple
     1 Emrakul, the Aeons Torn
     1 Ulamog, the Infinite Gyre
     3 Nature's Claim
     2 Eye of Ugin
     4 Obstinate Baloth
     2 Arc Trail
These are 2 very different sideboards, both have good merrit, I like both and have been experimenting with them. Its all on preferance on witch you want to play. No matter what you choose I hope you enjoy playing the deck as much as I am.