Fry's offers the Logitech G402 FPS Gaming Mouse (pictured), model no. 910-004069, for $39.99 with free shipping. That's $20 under our November mention (although that was bundled with a $20 gift card) and the lowest total price we could find by $10. It features four on-the-fly DPI settings up to 4,000 DPI and 8 programmable buttons.
Also available is the Logitech G302 Daedalus Prime MOBA Gaming Mouse, model no. 910-004205, for $39.99 with free shipping. That's the best deal we could find by $5. It features DPI settings from 240 to 4,000 DPI and 6 programmable buttons