I use razer gaming products and their amazing for wow play. This is my mouse And this is my keyboard
You really notice the improvement from the increased performance of the gaming products in wow. Good luck with the naga.
I've had a Razor Naga for along time, and it really does help a lot with all the extra buttons. You'll suck at first with it, but when your use to hitting the buttons you'll do a lot better than before. Its very smooth, accurate, though I've had to return my first 2 Naga to Best Buy because the buttons were sticking in.