Gundrak is stupid easy. So is Culling of Stratholme, just don't worry about the timer.

Occulus is stupid easy too if you know a trick or two with the drakes. I love getting it on a random now with the increased rewards. On the last boss. Park your healer toon on the floating island where the treasure chest is. 4 other toons on red drakes fly up about 25 yards and spam the boss. Healer guy on the platform heals the drake that has agro. When the boss does his shift, dont bother to run away, hit the phase button on the red drakes and they dont take any damage as they should have like 20 charges of the immune buff. Also if your group is shaman. you can have them all dismount on the platform and drop all your totems too and your drakes will have all the totem and healing buffs.