If you're planning a trip to Los Cabos (the collective name for the two towns of Cabo San Lucas and San Jose del Cabo, as well as the airport designation), please use my recommendations as guidelines only. Although we lived there for five years, and knew it intimately, we have not been back since 1995 and things DO change. The restaurants I've listed had all been around for a long time and will probably still be there but owners can change. My BEST suggestion is to do as we did...get a map, rent a car (we took ours with us) and EXPLORE!
We moved there from Denver. Crossed the border at Nogales and went through Hermosillo to Guaymas. Caught the ferry from there to Santa Rosalia and drove on down through La Paz (the State Capitol of Baja California Sur; 'Lower California South') to Cabo San Lucas.
If I can offer any other help, or suggestions, please don't hesitate to e-mail me. We loved it there and will go back to visit friends.