You seem like a good resto. Stacking SP in all of your slots is just plain bullsh!t. I also use a lot of spirit, gems and enchants. unbuffed i have 1200 spirit now and still 2100 SP.
i alsways say: spirit is power! spirit is good for a resto in many ways. give u some sp in tree-form (not a lot but at least something) and it really enhances your mp5.
i also dont really like items with every 5 sec xxxMana, i prefer the items with spirit.
i think for 60 emblems of honor you can get the best resto shoes in the game (lots of spirit AND also manareg every 5sec).
as i said: as a resto, your power is your manareg. priets go oom, shams go oom (palas dont get oom, but they cant raid-heal
). so after a long bossfight, when the above mentioned healrs are oom, you are still the one keeping the DDs and the whole raid alive.
so there is no point in having 2300+ SP but going oom in a raid fight.