I do love this mouse... sadly, I can't replace my G5 with it. Fact is, I've become too used to the side-to-side buttons on the scroll wheel, which I'm using to strafe.

If this mouse ever adopted that small feature, I'd be all over it. Right now I'm using the n52te gamepad from Belkin. Between that and the G5, I'm pretty much using my keyboard to chat -- that's it. =)

The naga really is an awesome mouse. I’ve been able to heal so much more competently with it and haven’t had to do anything crazy like redesign my UI. If anyone’s thinking of getting one of those crappy steel series WoW mice, forget it. This thing is primo.

The WoW Mouse from Steelseries has those buttons by the mouse wheel, Galestrom.
Been using it for about six months, really worth looking at for a mouse with a ton of butons, I know I couldn't go back to a 5-button mouse now.

this mouse is so sick and sexy, i couldnt stop licking it for 30 minutes after i got it

I was nervous that I wouldn't end up using all those buttons, but wow! In a day, I was using them exclusively without a second thought. Using just shift as a modifier, I can hit 24 hotkeys just as easily as I used to hit 3.
My main is dps and it's awesome for that, but mouseover macros + naga + healing is amazing. Amazing!