Razer has brought out another awesome gaming mouse, the Razer Lachesis.
The Lachesis (latin for ‘Bringer of Death’!), boasts a 3G 4000DPI laser, on the fly sensitivity (as with their previous offerings) and 1000Hz Ultrapoling. This is a serious piece of kit.

I am very happy with my Razer Diamond back, which has lasted me a couple of years now, but if and when it dies, I think the Lachesis will be its replacement.

Which rodent do you use? Are you a Razer fan, or are you on the Microsoft or Logitech bandwagon? Or maybe you have found a very worthy non-branded mouse?

Here are the Lachesis specs:

Specifications
4000dpi Razer Precision 3G Laserâ„¢ sensor
32KB Razer Synapseâ„¢ onboard memory
Nine independently programmable Hyperesponseâ„¢ buttons
1000Hz Ultrapolling / 1ms response time
On-The-Fly Sensitivityâ„¢ adjustment
Variable true dpi setting adjustments in increments of 125dpi
Always-Onâ„¢ mode
Ultra-large non-slip buttons
16-bit ultra-wide data path
60-100 inches per second
Ambidextrous design
Scroll wheel with 24 individual click positions
Zero-acoustic Ultraslickâ„¢ Teflon feet
Gold-plated USB connector
Seven-foot, lightweight, non-tangle cord
Approximate size: 129mm (length) x 71mm (width) x 40mm (height)

You can see a full write-up on this mouse here:
http://3dxtreme.net/index.php?id=razerlachesisp1