B&H Photo Video offers the Kwikset 910 Traditional Signature Series Deadbolt with Z-Wave in Nickel for $109 with free shipping. (It's available in Brass or Bronze for a few bucks more.) That's $3 under our February mention of another color and the lowest price we could find today by $38, excluding the below mention. This weather-resistant lock features a motor-driven deadbolt, side locking bar technology, and audible low-battery warning. When paired with a compatible Z-Wave hub (sold separately), it also features remote locking/unlocking, status updates via text or email, and 128-bit encryption.
A close price: Amazon offers it in Bronze or Brass for $112 with free shipping.
Update: Amazon now charges the same price in Venetian Bronze.