I use a death adder. Simple design, but very functional. The dpi is not bad at all. (Also I have a horrible habit of chewing through my plastic covered cords so the nylon helps. Mild case of pica I know I am weird.)

However I took one look at the RAT 7 and see you're not a big fan of simple. So maybe you should tell us why you don't want the RAT 7 again?