So, I've been playing for a while as a JG and just haven't been able to wrap my head around how to keybind everything and still be able to play the game. I have pretty big hands, but even I can't reach the 7 key while still using WASD movement.
So initially I branched out and started mapping around my movement keys, I don't use keyboard turning often, but sometimes when my mouse is busy that's the way I do things. I know it isn't optimal, but it works for me.
I asked around and the solution seemed to be a special gaming mouse, or special gaming "claw". I settled on the Razer Naga, a special gaming mouse with 17 buttons. That sounds like a lot, but 12 of them are thumb buttons set up in a keypad design.
I was skeptical, but a lot of people use it, so I decided to bite the bullet and pick one up. Today it arrived - and before I've even played with it I love it.
It's awesomely designed, it's big enough to fit comfortably in my hand, and the buttons seem to be optimally designed. It also lights up! Cool stuff.
So for any of the rest of you that are having trouble, check out a gaming mouse, you might enjoy the difference it makes in your game.