Saturday, 31 July: Drive from Portsmouth to, roughly, Alabama or Louisiana
Sunday, 1 August: Drive to Houston or College Station, TX
Monday: 2 August: Stay in College Station
Tuesday, 3 August: Drive to San Antonio
Wednesday, 4 August: Drive to the Arizona border
Thursday, 5 August: Arrive in California
Map:
http://maps.google.com/maps?f=d&source=s_d&saddr=portsmouth,+va&daddr=montgomery,+al+to:new+orleans,+LA+to:Houston+to:Bryan,+TX+to:san+antonio+to:Lordsburg,+NM+to:san+diego,+ca