My wife and I just got back from Napa last week and visited a number of great wineries all of which have wine clubs. Most of them are smaller and don't sell their wines anywhere but at the winery and through internet/wine clubs. The wine clubs can be a good deal and they treat you like royalty if you ever visit the winery. These were my two favorites and we're trying to decide which club to join.
Solid Cabernet and good Reieslings at V. Sattui. If you like Port, they have a great 1999 vintage port. The Sattui Family Red is a great blended table wine that tastes much more expensive than it is.
http://www.vsattui.com/
The wine castle is pretty cool, they have a great Chardonnay and Merlot. My wife particularly enjoyed their desert wines.
Castello di Amorosa Winery - A Castle In Beautiful Napa Valley - Castle Wine Tour and Tastings of Cabernets, Red Wine and White Wine in Napa, CA
Then again, there's always Beringer White Zinfandel, 48 bucks a case.
