I found the Fanfare FT-1A to be the best-receiving FM tuner I have tried from my location near a major metropolitan area (Wash DC). It is not a flat area, there are some hills, but I don't know how "rolling" or comparable to your location in CA. This tuner was very sensitive and worked well for me w/just an indoor antenna.
FM Tuners
I LIVE JUST OUTSIDE A METROPOLITAN AREA WITH ROLLING HILLS APPROXIMATELY 200FT TALL. I LIVE IN THE VALLEY AREA. WHAT MODEL OR BRAND OF TUNER WOULD YOU USE? I AM USING MARTIN LOGAN PRODIGY SPEAKERS, MARK LEVINSON 360 AMP AND AUDIO RESEARCH SP1 PREAMP WITH CALIFORNIA AUDIO MKII ICON CD PLAYER. THE CABLES ARE VERY GOOD ALSO. THE TUNER DOES NOT HAVE TO BE EXPENSIVE, JUST AS CLEAR AS POSSIBLE UNDER THESE CONDITIONS.