Does anyone have any recommendations for handling the new pain suppression?

There are a few things that are important
1) If you are tanking, you need to know when you get the buff maybe a glowing green viewport border (similar to red agro flashes).
2) If you are tanking/raid leading, you need to know wether the priest has the buff available (similar to battle rez)
3) If you are the priest you need to know your own cooldown (this should already be handled by various buff mods)

We tried it out last night and it seemed to work quite well. There were a few times in ZA I would drop down to 4k health with no oh shit buttons available and the priest was on the ball and saved me. I'm sure there were more times that I just didn't notice.

As for power infusion, we were using on the shadow priest, and it would be nice if something better than a whisper macro existed (or already exists), maybe a flashing gold border similar to the green flashing border mentioned above.