Logitech Performance MX. Dark field laser is simply awesome.
A Logitech Performance MX...which drives me up the wall at times as I am constantly having to plug the darn thing in for battery recharging via a crappy cord system
I know, I have a Performance MX ánd an MX1000 By the way if you send Logitech an email complaining about your MX1000 not charging correctly, they will probably send you a new one, no questions asked.