The San Fransico-based LetsTalk.com, an online retailer of wireless products and services, leased a new Grand Prairie hub in the Great Southwest Industrial District for three years. The company, which currently occupies 8,000 square feet off Post and Paddock Road, will more than triple its space in a 25,800-square-foot warehouse at 1111 West Carrier Parkway North in March of 2003. Dayton Conklin of Prologis represented the landlord in the lease transaction. Jason Miller of Property Advisers Realty represented LetsTalk.com.