Sunwell Plateau

We just did this with 25 people, none of which had any previous Sunwell experience. In my opinion it was a lot easier than doing the old Naxxramas was at level 70, mainly because of the HP nerf in patch 3.0 I guess. We oneshot every boss except Felmyst.

Some tips:
Kalecgos: tell DPS to wait before killing the dragon, otherwise you risk having a banished dragon and no portals up. Kill the demon first and then the dragon. No portal rotations are needed anymore.

Brutallus: it's still a good idea to move away if you have the Burn debuff, other than that it's an extremely easy fight that can be done with one tank.

Felmyst: Mass dispel is still needed, but one priest is enough because you can stand in one group at the side of the boss. Encapsulate damage is healable even if it hits the entire raid. The trickiest part is phase 2 - it's important that you have someone call out the breaths in time. If not, the entire raid will get mindcontrolled.

Eredar Twins: Chain Conflagrate damage is healable now, so while it's still a good idea to move out of the raid if you get it, you won't wipe the raid if you're 'that guy'. With decent DPS you shouldn't have to worry about Dark Touched and Flame Touched debuffs.

M'uru: Total joke, just DPS him and ignore the adds, then repeat in phase 2.

Kil'jaeden: All the damage is healable now, so you can pretty much burn him down without any tactics. He was going down so quick that he never cast Darkness of a Thousand Souls for us, but you might want to get someone to control a dragon just in case (it will kill you if you're not under a dragon shield when he does it).

After Doing naxx on 70 I can attest that end game bosses like this wont be a joke even with 10 more levels tacked on to your character.

i agree with tolar. i went with my guild which was the 2nd best guild and with members from the best guild on the server to naxx with 35 of us in t6 and one of us copped a 9,600,000 damage holy shock from sir zeliak of the four horseman because people didnt understand that if you dont spread out the attack will chain. needless to say naxx is no joke at 70. SWP wont be a joke at 80

EDIT: Well I tried Sunwell Plateau last night with 24 other ppl 7-10 of which had done SWP in BC full clear and we we're able to zerg Brullius and Felmyst follow the strat for Kalecgos but feel down and called it at Eredar Twins.

Exactly the same attitude that got the raid group (a diffrent one) wiped at lvl 70 in Old Naxx on 4H, got a lvl 80 Raid group of 7.5 wiped about 8 times to Eredar twins because people would not pay attention to the start and follow/pay attention to warnings on Deadly Boss Mods.