Anyone use a Kensington Trackball? I just online ordered the Slimblade, and am wondering if anyone uses it for work. My five-year old Logitech MX Revolution is starting to lose its wireless handshake. Best damn mouse ever made, but stupid Logitech doesn't make it anymore, and its replacement, the Performance MX, isn't nearly as good (cheaper build and parts). So I'm hoping people like their Kensington trackballs. Used one in college and it was fantastic with Macs, especially if you code, design, or do layouts. Pinpoint accuracy, along with the ability to zip the cursor across multiple screens super fast. Hoping Kensington is good.