okay....so i researched a bit.... and found out two major builds for restoration druids to be
ToL build (Tree of Life)
This build will bring you to the "Tree of Life Form", full resto build which depends mainly on your Spirit. apperently this build is better for raids and off-healers, and less effective as main healer in heroic and/or Kara raids.
this is only according to what i understood from other people's oppinions, soon i will hope to try it for my self though...
This build uses machenichs from both Balance and Resto Talent trees, the balance tree is all about gaining "Dreamstate" which restore your mana faster during your healing.
while in ToL form you cant use the Healing touch spell, which means that against mobs who damaging your main tank heavily and fast, your HoT spells may not be enough, therefor, this build apperently is better for main healing while in heroic and high level dungeons.
i hope to check both builds as soon as possible, but until then...