MM raid spec?Follow

im not gonna go into whats best etc but as a start and something to get you going you can check my spec at the armory (click my name in th sig)

the trap talent really isnt a must, but its nice to have as a backup altho its more for 5mans(got a bit fooled from the start in kz where its really nice to have up to the 3rd boss but unfortunatly more or less useless after)

extra range is always nice to have,apart from that just think damage damage damage

Aethian has the right idea with raiding specs. The idea is to maximize dps in anyway possible. I have some issues with his specs but they're basically what they should look like. Heres how I would have based off of Aethian's builds.
Imp. Mark:
http://www.worldofwarcraft.com/info/classes/hunter/talents.html?5020000000000000000000555001205013253135122300000000000000000000

And without:
http://www.worldofwarcraft.com/info/classes/hunter/talents.html?5020000000000000000000505051205013253135122300000000000000000000

I like the 2 min off of rapid fire but it isn't a necessary talent to put points into. Also, if you're wanting to go raiding most of the time you wont be using conc. shot so the points into improved are wasted. Imp. arcane shot is a must, the reduced cooldown adds some good extra dps to your ******** You generally wont have your pet doing damage (due to the cleaves blizz has added to most mobs) unless you have a windserpent and so you wont need endurance training. I personally don't like go for the throat because of the fact that I don't have my pet attacking, but it can be good if you like pvping or soloing on the side. A few of the points are really up to you and how you tend to play. Good luck and happy hunting.

This is my spec in case you wanted to know: http://www.worldofwarcraft.com/info/classes/hunter/talents.html?5020000000000000000000505051205013253135122300000000000000000000

In raiding, rapid killing is nice because it works similarly to Improve Aspect of the Hawk in which you get a speed increase which in turn increases dps (shots fired at higher rate = more shots fired = more damage). I didn't put points into it for the damage increase off of mob death.

Partly true, but not exactly. Let me explain...
Hunter's aren't all aboubt DPS. No, although they're considered safe DPS, they are much, much more. In groups, a good hunter serves as an off-tank, CC, damage, aggro management (misdirect) and more. All speccs are viable for raiding, they all have their own advantages. Survival and Beast Mastery are more utility and Marksmanship is more damage. But no for the OPs question

For a BM raiding Build, I would go something like this
For Marksmanship, I would go something like this
And for survival, this looks very nice.

Granted, some of these talents can be switched. My favorite raiding one is survival though. I mean, the talents will keep you shooting for longer with the extra hp and mana regain talents like Thrill of the Hunt. Also, with some of the Imp. traps you will be able to chain trap amazingly while fighting. Keeping enemies frozen for extended periods of time. But I'm not the best hunter, and you don't have to listen to me, also some of these talents may be swaped. It's all what you enjoy.

Btw, get a windserpent for the short ranged breath or a wolf for the AP buff if you want your pet out of AoE range and don't plan on using it for damage.

GftT is incredibly useful in raids, since you should have a wolf or a wind serpent. GftT procs will enable you to spam Furious Howl/Lightning Breath more, thus adding to your DPS.

Go For the Throat can give your pet 50 focus on a crit. That's another Furious Howl / Lightning Breath / Claw attack against your target to help hold aggro or for raid dps.

Rapid Killing is incredible. Boss fights take a -long- time now. Being able to use Rapid Fire several times per boss fight increases your damage done and helps finish the encounter quicker.

Imp Stings is generally not seen as useful for raids since Stings are a flat damage increase, can not crit and do not scale with RAP. Serpent Sting(Rank 10) is 660 damage for 275 mana. With Imp Stings, that becomes 858 damage (660 * 1.3). That's 5 talent points for 198 damage or 5 talent points for 13.2 dps (198 / 15) increase.

Concussive Barrage is pretty bad. You only have 6% chance to daze a target off of Auto Shots. To make the math simple, with a quiver adjusted weapon speed of 2.5 seconds, on average, it would take 41.7 seconds to trigger a daze ((100/6) * 2.5). Dazes add 175 damage to Steady Shot. So that becomes 4.2 dps (175 / 41.7) increase on average for a 3 point investment.

Combat Experience is pretty bad, in my opinion. Have done the math before but it comes down to personal preference. Some like this talent, some do not.

Slaying talents may or may not be helpful, depending on the raid location. When they work, they add 3% more damage per hit or 6% more damage on crits. Over time, this adds up. As a percentage increase, it improves as our damage increases.

Efficiency helps since boss fights are so long. This talent along with down ranking can help keep you going longer for more damage output.

Imp Hunters Mark is a nice talent. It helps pets, rogues and warrior dps. End game raid fights currently are not rogue friendly so this talents usefulness in end game raids is questionable in my opinion.