I think it's great that you are going to start riding. I bike everywhere and keep a rule to ride as an example as opposed to a target. Stopping at stop signs, yielding to pedestrians, etc, are great ways to keep people from getting angry at you and, then, all other bikers. I've been biking in the city for 6 years and haven't been hit (as opposed to all my other biking friends).
Something I always suggest to friends, I'd say check out Seattle's website on biking (http://www.seattle.gov/transportation/bikecode.htm) and Cascade.org for the laws and tips that you can use.
And, lastly, the only real tip I have up my sleeve: If you are coming to an intersection and suspect a car in front of you might turn and cut you off, watch the front wheels of the car. Always a good indicator.
Have fun riding!