Researching Power Aura's a little.

Here is a five part tutorial:
1: Forgetting Buffs http://www.youtube.com/watch?v=aiUy3..._order&list=UL
2: Tracking Buffs/Debuffs http://www.youtube.com/watch?v=5lJz9...eature=related
3: Action Usable http://www.youtube.com/watch?v=3pWKp...eature=related
4: Spell Cooldown http://www.youtube.com/watch?v=Z_kTL...eature=related
5: Conditional Auras http://www.youtube.com/watch?v=uSrLg..._order&list=UL