Best Buy offers the Logitech G602 Wireless USB Gaming Mouse, model no. 910-003820, for $39.99 with free shipping. (Amazon charges the same.) That's tied with our March mention as the lowest total price we've seen for this mouse. (It's a current price low by $10.) This mouse features 11 programmable buttons, 2,500 dpi, and up to 250 hours of battery life per charge.