im bit lazy to type anythin long but there is perfect guide at elitist direct link here http://elitistjerks.com/f47/t66856-moonkin_pve_dps_updated_3_3_3_a/

that guides talent tree there is 5 talent still free to use. on my own spec i have 3 of those on improved insect swarm and 2 point in owlkin frenzy as i noticed it procs guite often some fights in icc ie: sindragosa/festergut
and my other different from that base talents is that i have 1 point in genesis instead of moonglow. 1 point in genesis gives me total 1% more dmg from my dots ^^ i know its not much almost nothin but still its more as i dont need 3% cheaper spels manawise hardly never oom or even half mana after fight.

other thing i want u to notice bout rotation they sayin on that guide. they first says to keep dots all the time on. and later on they says there that try to avoid GCDs durin eclipse for refreshin dots. so sayin that at start u put dots up but after that u refresh only ur other dot just end of the eclipse. ofc this only in situation u have improved insect swarm talent which also in my opinion best way to spend 3 of those 5 talents. as there is not much aoe bosses icc/toc. so when ur last wrath cast is going inside solar eclipse u refresh ur moonfire cause u bout to get lunar eclipse going to proc next and u start usin ur starfire and u get 3%more crit for it. and when last starfire cast going in lunar eclipse u refresh insect swarm for get 3% more dmg for wrath when solar eclipse is bout to proc

ofc when ever u needs to move its good to refresh both dots.

if u have 2 piece of tier9 its also good to keep moonfire up as much as possible for dmg also.. but shouldnt waste gcd for it durin eclipse.

cheers have a nice readin.