Razer is a very well known name in the gaming peripherals market and one of their best known mice beside the Deathaddar is the Razer Lachesis.
Previously this mouse had 9 programmble buttons, onboard memory, On-the-fly sensitivity and a 4000dpi laser sensor which made it the highest dpi mice out there on release and definetly one of the smoothest and most precise mouse you could buy. Razer has now upgraded the Lachesis, the 3g Laser sensor which was previously at 4000dpi is now a 5600dpi sensor as you would find in some of Razer's latest mice. The lighting has also been changed, previously 3 colors were available, red, green and blue which has been replaced by the new tri-color LED which means you can choose any color you want with up-to 16million possible choices.
The new updated Lachesis is priced at $80 on the official Razer website.