Home Green Products Guide Where can I get solar power panel installed in California?

Where can I get solar power panel installed in California?

I am in search of solar installation companies and I have a few questions in my mind. From where can one buy solar panels in California? Which are the various producers/suppliers and what is the price range of these panels? Any information of its uses in lighting systems and possible amplification of the voltage etc would be helpful. Please help I need the information as soon as possible.