Should I choose 0, 1/2, or 1 point mortgage loan?

[AW]

I would like a 30 year fixed home loan in California. I need tips on anything related to buying a home.

[Pu_Rock]

The higher the point you choose, the more you will have to pay up front. 

Pretty much your're paying for an interest rate deduction.  So if you choose 1, you will pay more during closing, but less in interest throughout the life of your mortgage.  If you choose 0, then you will have lower closing costs, but your interest rate will be at the market rate (in relation to your credit).