My little review on g903! Have been yousing it about 2 weeks now, absolutely in love with it! Ambidextrous shape realy suits me also may be yoused for left hand. Software is
Logitech G903 Wireless Gaming Mouse Review - IGN
Amazon.com: Logitech G903 Lightspeed Wireless Gaming Mouse, Hero 16K Sensor, 16000 DPI, RGB, Lightweight, Programmable Buttons, 140-Hour Battery Life, Rechargeable, Ambidextrous, PC/Mac, Black : Video Games