What should I be doing after 80? I just dinged and also just bought cata, so I'm ready for 85, but I havent gotten to do any of the WoTLK post-80 dungeons. What should I be doing now to get ready for cata? Or should I jump right in to cata dungeons?

Level to 85. Cata greens are better than level 80 epics due to the stamina. I replaced T10 with greens the first week and my 10k gold Quel de lar blade.

Start getting heroic armour so you can do raids. Finish any quests you havent done so you can make money.

Keep on leveling til you hit 85.

Go into Cata, WoTLK gear wont compare to the greens you will get in Cata.