Edit: I found another 'post your spec thread' on page 3 [the dumb search function is down ], but it doesn't really talk about the Balance tree as much, and I kind of want to see what people are thinking. Again, I know all these things aren't set in stone, so everything here is hypothetical and for fun.
I'm going to talk about the uselessness in the Balance tree for Restoration Druids.. Does anyone else get confused after only 10 points in? Of course we can spec into Nature's Grace, but beside the talent name there's a big [TBR] so the likelihood of that talent remaining isn't very great. There is also Nature's Splendor, but again, you will need 15 points already in the Balance tree [in the third tier, this would mean 3 in Nature's Grace (which is being removed) 1 point into Solar Beam (which is useless for Resto PVE, but could be fun) and Celestial focus (which has been redesigned and is no longer useful to Resto Druids)]. So already we have 2 random talents in random, useless places - this given that Nature's Grace remains [in which case if it doesn't it becomes 5 points]. In addition, if the mana-strain in Cataclysm becomes even bigger than anticipated, I wouldn't be surprised if people started specing into Dreamstate - in which case we will have to spend 20 points into the Balance tree and the wasted talent count goes to 6 [9 if Nature's Grace is removed].
Anyways, that's my rant on the current talent locations of the Balance tree that is already 95% complete. So there is still obvious changes that are going to happen... so just calm down. We're just discussing the talents as they stand now.
Moving on, one of the main goals of Cataclysm is to change the redundancy in the Resto. Druid healing 'rotation'. So far I really think they are on the right path putting Wild Growth on a 10 second cooldown. Of course, 8 seconds would have sufficed, but nevertheless I am still looking forward to see how great this will change the way we heal. I'm still not convinced that we won't be casting Rejuv. as much, though. Unless they considerably make it cost more mana> I can see that Rejuv will still account for 40-50% of our healing. Thinking about it now, 50% actually doesn't seem that bad though. I love the idea of Efflorescence. I can easily say that this is my favourite thing in our Restoration tree as of yet. We get extra crit. bonuses to our Regrowth so I can really see this effect being really helpful.
I've never been a big fan of burst-healing cooldowns, but this new ToL idea could actually be fun. The idea of it anyways. I'm just really glad that they changed the effect of the Master Shapeshifting talent to be included while we are in our spellcasting form. In addition, Resto Druids are the only healing class not to receive a baseline improved mana-return spell. However, revitalize has been revamped to return 3% [when specced 3/3] of your mana every time our Regrowth or Lifebloom HOT effect crits - this effect can only happen every 6 seconds.
So here's the current build I would be using if all of these talents were final>
http://www.wowtal.com/#k=QsPnop5Vievbm.9dw.druid