Please check out the Echelon Napa Gran Fondo http://www.echelongranfondo.org 
This is a fundraiser as well for LIVESTRONG and local cancer foundations and seeks to give participants a TDF like experience with partial road closure, police escorts, and the same chip timing gear pro riders use in the Tour.
Sponsored by Garmin and Hammer Nutrition, Echelon will provide participants AMD chip timing from start to finish as well as an epic hill climb section that is also timed. Great food and music afterwards. Feature local pro is Lucas Euser from Garmin Transition Slipstream.
This will not be a points race but will be an officially sanctioned USA Cycling Gran Fondo. Awards list (for timed hill climb) will be announced shortly. No license required.