Since it's very, very likely that the 4.0.1 patch is going to come out next week, I thought I'd prepare folks for the coming...uh...cata...err...patch day. Yeah, patch day. There's lots of articles about what you should be farming or what you should be doing in the final days. I just want to let you know how to gear and how to spec.
At level 80 you won't be able to get either perseverance or master shapeshifter, so you might as well go for some of the less useful talents in the tree - like Stampede and Fury Swipes. You could consider taking King of the Jungle instead if you have 4pT10, but I wouldn't bother - and definitely don't if you don't have 4pT10. Otherwise it's about as cookie-cutter as you can get; there are almost no talents in the bear arsenal that are nice to have, and most of the skipped talents are either entirely for cats or are super weak for bears.
For glyphs, here's what I'd use:
Glyph of Rip (right now you literally only have two prime glyphs for bears, so might as well)
Not horrible, but I hate having that rip glyph.
For gear, you'll lose a LOT of extra armor from your armor rings/trinkets/cloak, so it's a good idea to pick up the higher ilvl gear without extra armor and get some of that stamina back. Double stamina trinkets are likely not a bad idea if the armor nerf on gear continues. Do consider getting non-'tank' rings and amulets as well for dual use; they'll have as much stamina as the tanking jewelry, and should be good options. As an example, the often hated Seal of Many Mouths is probably going to be one of the better pieces you can get. Remember that you'll be losing 10 expertise right off the bat, so replacing that should be up on your list; while things won't parry haste, it will be good to keep threat high. Similarly, Sindragosa's Cruel Claw should rival some of the better tanking necks out there. Gemming should almost certainly be stamina, since it now provides both health and some mitigation via vengeance-fueled Savage Defense
On reforging: haste is the least useful stat for bears given how GCD-focused they are; while it does increase rage income, it won't do so insanely well. As a result, you should consider reforging all the haste you can into mastery or dodge. My gut feeling is that your dodge% will be ridiculously high, so mastery will likely provide a better overall result of reduction of damage per point. If you really need to, get expertise or hit, but try to get pieces that have that instead.
For raiding, Bears are actually in a pretty decent spot. Their threat has been rebalanced significantly and mangle proccing off of lacerate combined with mauls every 3 seconds and very high frontloaded swipe threat and lacerate threat puts bears in a good spot. Savage Defense in a weird, backwards way ends up scaling with bosses...kinda...and certainly is better than it is now. Reforging helps bears quite a bit, and all that extra stamina on agility pieces gives bears tons of options they didn't have before. Skull bash even acts as a mini-charge of sorts, and the cooldowns are significantly better than they were. If you were tanking at a high level before, I think you'll be in great shape to tank now.
Similarly to bears, as a cat you can't get master shapeshifter, so those points have to go into the feral tree. This time, though, there are a lot more options. This build focuses more on utility and survivability, picking up Nurturing Instinct and Furor and skipping Predatory Strikes. In fact, that's the only dps-related talent that was skipped, and it was skipped because at level 80 you will have an absurd crit rate and don't need the boost to ravage.
The rotation hasn't changed at all, though the length of some of the buffs have. At level 80 it should be absurdly easy to maintain a rotation, given how fast you are with haste.
As to the glyphs, there's some interesting ones:
Glyph of Claw (which will be Glyph of FB)
Not the best options for DPS in the major glyph categories, but hopefully these will change soon.
In terms of gear, you won't have any armor pen - you'll be swimming in crit and haste. Your first goal should be to regem to hit the hit/expertise caps if you aren't already (including the missing 10 expertise from Primal Precision) then go pretty much all in on agility or haste. As I state below consider going for agility, since you can reforge to haste. Ignore crit rating; at level 80, in T10 gear that wasn't BiS, I had something like 82% crit rate. Because of that, the Arpen trinkets lose value compared to Herk or WFS, since you'll have such high crit rates anyway. DBW is still kinda awesome because of the trigger, however.
For reforging, you can't reforge to agility, so consider reforging to either haste or mastery. My money's on haste, but this is one of those things I'll have to test and retest. Numbers are (still) not remotely set in stone for ferals, so this is likely to change some. My gut feeling is that if the 4.0.1 patch comes out on Tuesday and it's anything like what we currently have, cats are going to be doing ridiculously low damage compared to what they do now - likely around half the damage. I'm not sure they're a reasonable option for any hardcore raiding at this point. Hopefully they fix things a bit more.