Amazon offers Prime members the Cuisinart Grind Central Coffee Grinder, model no. DCG-12BC, for $22.50 with free shipping. (Non-Prime members can spend $35 or more to qualify for free shipping; otherwise, shipping adds $8.24.) That's the lowest total price we could find by $7. It features a brushed stainless-steel housing and can grind up to 18 cups of coffee at once.
Orders placed via 2-day shipping by December 22 will arrive in time for Christmas. (This option is free for Prime members, but an extra $13.96 for everyone else.)