Amazon offers its Prime members the Logitech G602 Wireless USB Gaming Mouse, model no. 910-003820, for $39.99 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $8.41; Best Buy charges the same.) That's tied with our mention from last month as the lowest total price we've seen for a new unit. (It's the best deal now by $19.) This mouse features 11 programmable buttons, adjustable sensitivity (250 to 2,500 dpi), and up to 250 hours of battery life per charge.