Canon discounts a selection of factory-refurbished cameras, lenses, and camcorders during its Memorial Day Refurbished Sale. (Use your browser's find/search function and search "refurb" to see available deals.) Shipping adds $11.99, but orders of $100 or more bag free shipping. A 1-year Canon warranty applies to all refurbs. Deal ends March 31. A couple of best bets, with comparisons against buying new:
BuyDig via eBay offers the factory-refurbished Nikon 55-300mm f/4.5-5.6G VR DX AF-S ED Zoom Lens, model no. 2197B, for $189 with free shipping. That's $55 below our mention of a new one from three weeks ago and $58 under the lowest total price we could find for a new model today. This DX-format zoom lens features a High Refractive Index element, ED glass, and VR II image stabilization. A 90-day Nikon warranty applies.