There is a Naga model that has that.
---------- Post added 2012-04-14 at 06:10 PM ----------
Pushing those 12 buttons will only feel weird because it's not something you're used to. I thought the same thing when I first got the Naga, but I got used to it over the first couple weeks, and now it's just second nature. When I'm watching GW2 gameplay videos, I find myself instinctively pushing the "6" button with my thumb if they go too long without healing. :S