Clarke Santiago and his wife Teresa, parents of two children, opened a buffet restaurant last year. They've been so successful with their family-style atmosphere that some investor friends have offered funding to expand into two additional locations. The investors also want to consider opening several more restaurants each year. After thinking it over, the Santiagos decided to stick with one restaurant and add catering services-a move that should provide them with a satisfactory income. The Santiagos' business is a good example of a .