Northwest-Outdoor via eBay offers the factory-refurbished Garmin Forerunner 910XT GPS Sport Watch, model no. 010-00741-20, for $109.95 with free shipping. That's $30 under our refurb mention from March and the lowest total price we've seen for this device in any condition. (It's also a current low for a refurb by at least $30.) Designed for running, cycling, swimming, and other sports, this GPS watch can track your position, distance, elevation, and pace. A 1-year Garmin warranty applies.
Note that a heart rate monitor is not included.