B&H Photo-Video offers the Canon imageCLASS MF8080CW Color Laser Wireless Multifunction Printer, model no. 5119B001AA, which also scans, copies and faxes, for $299 with free shipping. That's the lowest total price we could find by $9, outside of the prices below. It features built-in duplexing, up to 12 ppm black, up to 8 ppm color, up to 2400x600 printing dpi, 50-sheet document feeder, and both Ethernet and USB 2.0 connectivity.

Close prices: Buy.com and Amazon both have it for $299.99 with free shipping.