For the feel of a rustic reception with the service of a luxury venue, take a look at The Carneros Inn, 707-299-4900, thecarnerosinn.com, set on 27 acres of vineyards and farmland in Napa. The inn recently added two large function rooms, including a ballroom, with neutral-enough sage green carpeting, white clapboard walls and floor-to-ceiling French doors that open onto a courtyard landscaped with fig trees. There are also two restaurants with great bars, a spa and even a small "town square" with a post office and general store—making the inn the perfect place to "rough it." Capacity: 170. Catering: In-house only. Rental fees: $6,000–$10,000; $130-per-person food and beverage minimum.