If you don't locate what you're looking for trying Insweb, use another web service like esurance.  Esurance not only gives a comparison of Texas auto insurance rates, but it also has a wealth of information about buying car insurance.  If you still aren't happy, the next step is to pick up the telephone and call major insurance companies.  Most states such as Texas have offices from the prominent insurance companies, like State Farm and Allstate.  You can also try national carriers like Geico.