You've just inherited 35 acres of prime Sonoma County land and a tidy sum from your uncle George. And now you have the opportunity to leave the mess on your desk and realize a lifelong dream -- becoming a wine grape grower. Without a strong background in farming you could make some costly mistakes if you're not careful. So what do you do? Contact Sonoma County farm advisor Rhonda Smith for a copy of her recent publication, "Sample Costs to Establish a Vineyard and Produce Wine Grapes in Sonoma County." Smith and a team of Cooperative Extension economists from UC Davis analyzed costs for items such as land preparation, vines, trellising, irrigation, frost protection, cultural practices, labor, equipment and overhead. Smith says the publication is a good first step for getting a realistic assessment of what's involved in making a vineyard a successful reality.