Moofi (Woot's secret site) offers the factory-refurbished Razer Naga 17-Button Gaming Laser Mouse in Black, model no. RZ01-00280100-R3U1, for $39.99 plus $5 for shipping. That's $5 under our Black Friday mention and $35 under the lowest total price we could find for a new one. This mouse features 17 programmable buttons, 5600 dpi, scroll wheel, and more. A 90-day Razer warranty applies. Deal ends October 10.