The Garmin Forerunner 305 GPS Watch with Heart Rate Monitor has been available since 2006, but is still a cool fitness device especially at the new low price of $149.74, available on Amazon.com. List price is $299.99.
I found this deal because with its new low price the Garmin Forerunner 305 has shot up in the Electronics Bestseller List to #13.

Besides all kinds of lap tracking features the Garmin Forerunner 305 also features a heart-rate monitor. New in this Forerunner generation are customizable screens and also the multi-sport feature, that lets athletes track their training across different activities. Via USB the GPS tracking data is transferred to a PC where it can be evaluated with the bundled software.
More details on Amazon.com.