I am taking my first trip to the Napa/Sonoma area for my 40th birthday. I am looking for a driver/tour guide and will have a car. I just don't want to be drinking and driving. Any suggestions? Also any suggestions on good merlot wineries?

IMHO--The Merlot at Domain Chandon is outstanding. It is almost the only wine I like !!!
http://www.wineshuttle.com is a good outfit to use for wine tours...
If you do a "search" on this board for "wine tours" I am sure you will find other references..

Merlot, you ask?

Pride Mountain, Paloma, Switchback Ridge and Hourglass. These wineries make, imho, the best Merlot in the country. Oh, and one thing in common about these wines - Bob Foley, a great winemaker, makes 'em.

For some thing less costly, but would qualify as a good QPR, try Havens.

Just wanted to say thanks for not drinking and driving.

Google for Napa Valley limousine services and you will find a number that provide a sedan and a driver.

Thanks for the info , I was hoping to find a service that provided a driver only, but have not seen anything like this in my search through all of the transportation services.

I think it will probably be difficult to find a driver only, although you might ask your hotel and perhaps a winery or two for recommendations.