Vince,
Tons of them: MLS, NDC, FARES, Dataquick (now part of FNC and includes AIRD which incorporates the old CMDC).
Always have the MLS. Always. After that, choose your poison for public records. You can get transfers, property data (be careful- not always right), plat maps and flood zones from NDC, FARES, and Dataquick.
Brad Ellis, IFA, RAA