SAN DIEGO & the Public school system

Hi,
I currently live in IL & my husband & I are tossing around ideas of a few different cities to live in. I would love to move back to San Diego but I heard that the public school system in California is awful. Although, we don't have kids yet we want to move somewhere where we know our (eventual) kids will get a good education. If anyone could, would you tell me specifically about SD & close town or suburbs nearby that have good public school systems? THANKS!!!!