I fully support a personal DPS meter. I'm wanting to swap from WHM to RDM as my main to take into Omega Savage, but I wouldn't even have a clue if I'm playing well or not. At least as a healer I can take a step back and ask "is anyone dying? Am I throwing rocks at the boss? Cool." Sure I can have a rough feel for it, but when my job is to deal as much damage as possible I'd like to know I'm doing that.