As a restro druid, you should have atleast 3 different healing gear set.
One Set Purely Stam/Int/SP Stacking. This set can be used when traveling through midfield when your FC is most likely going to be hit the hardest. You shouldn't have a LOT of spirit in this set. Suggest SP - 200+
Spirit Stacking Set. This set can be used when your either not healing or well you have a well formed D(2 heals, 1 DPS, and FC) and your about to get hit hard with a big INC(aka, your preparing for a long fight) also, this set is useful for when your kiting with the FC as well. Suggest SP - 190+
Hit Rating Set - I use this set from time to time when I am playing as an Offensive Healer. I use the same Stam/Int/SP Set except I use my aquarius belt and spider silk cape. Usually if your ever in game with me, you'll use me keep my Rejuvenations up on O while throwing roots and spamming moonfire to help DPS/CC the D team. Suggested SP - 190+
Hybrid Set(Feral) - This set I am still working on. I will be using this set when I am on D but there are no DPS helping the FC stay alive. I use the Embrace of the Viper Item Set that drops from WC. Basically I take advantage of the 20 Int the gear offers while using the same gear from my Hit Rating Set but I swap out the belt, feet, gloves, leggings, and chest from the Embrace of the Viper set. I still use my healing enchantments but lately I've been wanting to experiment with this set while using
This Talent Tree. What this allows me to do is still increase my healing done and I get an extra 4% crit chance while in cat form. I can easily make it look like I am a feral druid but I am still in restro gear. The only downside to this set is you lose about 200 mana, SP, but you gain about 200 health which can be very useful. And on top of that, you gain tons of dodge, crit, and AP while in cat form which infact would help your FC survive by DPSing and if he ever gets low on health, you can still heal him since your in a Hybrid set. Also, I'd use the PvP neck that gives u agi. Suggested SP - 185+
Another thing I would like the add, Any Restro druid that tries to gear like another restro druid does; will most likely never do as good as the restro druid your trying to copy. You need to learn how to gear YOUR restro druid, not how to copy someone elses. Not everyone gears the same because not everyone plays the same. You need to know what gear makes YOU the BiS Druid, because guess what; the only person who is going to be playing your druid, is you. So you might as well gear him to your benefit, never gear him the way someone else thinks would work best.