From our first pass through SoO I was lucky enough to get a 2.6 main hand, so I thought it would be fun to try my once favorite spec, combat, once again. And so far, the results have been astonishing. The run we did today, with 548 combat, I did (logs here):
Fallen Protectors: 362k
Sha of Pride: 288k
Iron Juggernaut: 209k (was dead last 40 sec)
Kor'kron Dark Shaman: 197k (was dead last 60 sec)
General Nazgrim: 254k
It's not the absolute top of specs of course, but compared to what http://raidbots.com/dpsbot/Spec_Scor...14/30/default/ will have you believe, it's very much in the mix.
So if you haven't already, I strongly encourage you to try out combat on your next raid. It's always fun to play another spec for a change
...and this one packs more punch than what the sims will have you believe.