Aye, my druid is feral/restoration specced as well, even though my feral gear sucks donkey testicles ._.
Like luckydude said, biggest hoop for healing druids to jump through is to heal a large amount in short time, thats more of a paladin or priest specialization ....
My rememdy to that, like many other druids I guess, is to just constantly have a buttload of HoTs on the tank in question, can throw in a Nourish when it takes a lot of damage and that usually covers it, as Nourish gets a lot of + from other HoTs, also stacking lifebloom to 3 on them fixes it too.
Some say healing druids dont need crit rating because most of their healing are healing over time and therefore unable to crit, I disagree, for when you get a crit with certain heals its a huge help to tanks brought low in HP, + they'll get a buff that'll heal them on next strike.
And of course spirit is the main stat, but after you have 900mp5 (like me) unbuffed you dont really need any more ..... you'll never run out of mana with that much.