Download old (pre MOP) Power Auras Classic
This is an old version of Power Auras Classic. It dates from Cataclysm but still works perfect.
You might get some errors from time to time but you can get rid of them by relogging.
Download old Power Auras Classic from here.
What’s the deal with this version?
After Cataclysm, this addons was modified and some functions worked different.
It can be used to setup on-use abilities, anywhere on the screen, so it will be really easy to notice when abilities are ready to use.
For example, it’s much easier to see the abilities right below your character than having to look at the bottom bar or even to the sidebar.