Suggestions for a visitor?

Hey everyone -- I'm crossing over the bay from McCovey Chronicles...and I come in peace.

I was hoping for some advice.  I'm planning on taking the wife to see the Giants/A's game in Oakland on June 22.  It will be my first game at Oakland, and I was wondering if you have some general advice/recommendations/suggestions.  Where's the best bet to park? What food would you suggest for eating at the game? Also, what section of the stadium will get me the best view for my dollar? Any other things I should know in general?

Thanks in advance.  Oh, and if there's already been a post like this in the past, I apologize, just please direct me to that page.