Newegg via eBay offers the D-Link DOCSIS 3.0 Cable Modem, model no. DCM-301, for $38.99 with free shipping. That's a buck under our mention from a month ago, the best deal today by $6, and the lowest total price we've seen for this model in a new condition. It's compatible with most cable providers and features download speeds of up to 343Mb/s and upload speeds of up to 150Mb/s.
Update: Specs corrected.