0/42/11+8 That build picks up all the necessary talents while leaving 8 for you to choose between the optional talents.
Optional talents include:
Nature's Grasp (usually if you have 1 point left)
Brutal Impact (helps in solo and pvp a lot)
Savage Fury (great for cat form...i.e. solo or DPSing - even as off-tank you'll DPS some times)
Primal Tenacity (if you're feared or stunned your TPS is 0 and you lose dodge)
Natural Shapeshifter (makes power-shifting or form-dancing easier)
Intensity (helps rage out if you're starved at first, but with proper power-shifting at the start of a fight you shouldn't be rage-starved)
While it's not recommended, you could also pick up Improved Mark of the Wild for the extra power on the buff, but then if you're at a point where buffing the mark will help enough people you should have a resto/balance druid with it.
There's also Nature's Focus, which isn't recommended unless you plan on PvPing a lot.
This is what I use. It tanks great, DPSes great, solos great, and I do fairly well in world PvP. According to one response when I posted this build here, it has all the required talents and none of the no-nos.
Speaking of no-no's, do NOT get feral aggression, and I'd strongly reccomend skipping nurturing instinct (as you shouldn't be healing in str gear anyway, although in 2.4 it will get buffed). Most of the balance tree (except for 1 point for NG) is worthless to a feral druid as well.