Newegg offers the refurbished Canon imageCLASS LBP6030W Wireless Laser Printer, model no. 8468B003, for $38.99. This $20 mail-in rebate cuts it to $18.99. With free shipping, that's $31 under last month's mention and the lowest total price we've seen. (It's also $45 under the best deal we could find for a new one today.) It features 600x600 dpi, up to 19ppm print speed, 802.11n wireless, and USB. Deal ends December 31.
Of note, a 1-year warranty applies, although it's unclear who backs it.