I've decided to do a small tweak on my current talent build changing it into this: (19/0/42)
I'm moving one point from Vengeance to Improved Regrowth giving me 50% crit chance instead of 40%. Regrowth is cheaper since the last patch and another 10% crit chance is nothing to frown at as I've found I'm using the spell more nowadays.
I'm getting 3/3 points in Brambles at the cost of Improved Moonfire and another point from Vengeance. Phaelia at http://www.resto4life.com wrote a nice article about the benefit of Brambles in december last year with some solid math backing up her arguments as usual.
I'm basically making my solo play a bit weaker at the benefit of more healing done and more threat generated by the tanks. Especially so in AoE tanking situations.
Black Temple can use some more healing done and more threat for the tanks in the Hyjal waves is also helpful.