I finally cleared this as well =). My first heroic.

The colossus was a colossal pain in the but. I wiped about 7 times. I am having serious issues with my paladin regaining aggro after the transformations. Almost all wipes were due to my priest getting owned right after the switch. My shaman got owned a couple times when I managed to save my priest, but that was bad too - bye bye nature resist. I tried again tonight and failed 3 attempts. Gave up and went through the other entrance to do Moorabi and Eck instead.

This has so far been a common theme for me. My priest keeps getting owned. I had problems with Novos (read: wiped 10 times) due to my priest dying (mostly from the adds). Positioning in the fight makes a huge difference too. I tried a different spot than what was in Hachoo's video, OMG LOL, what a mistake. I got overwhelmed with adds.

Similar problem with King Dred. I can get him down to about 50k most of the time but my priest eventually gets owned by the added raptor. I haven't tried fighting up the stairs yet though.

Well, at least I got some gear I needed after my 1k in repair bills (20g X 5toons X 10 wipes = OUCH!).