Online quoting systems are your best friend, and just about every major insurance company has them on their websites. I think I ran online quotes through GMAC, Farmer's, Allstate (who I have my other home/auto insurance through), State Farm, Geico, Progressive, and a couple no names who I found online (who ended up just being brokers for larger companies). That's what you need to do, to know what's best for your specific rig and planned uses. Make sure YOU get to declare the RV's value in the event that it's totalled, and research the roadside assistance limits if you plan to use what the insurance company offers. Progressive was by far the best/cheapest for me (as many others will attest) so that's what I have.