Vons and Pavillions are starting an organic line. It's a good place to start, everything in one place. They also have organic frozen vegetables. Quick and easy, just throw them in hot boiling water.
Try Trader Joes too!
For the past year, almost two, I have been eating organic foods, and it sounds like you don't need convincing!! Whole Foods is a good Place if one is available to you, I'm in the midwest and we have a Wild Oats and Fruitful Yield. Jewel and Dominicks your basic grocery stores (once again Midwest) are expanding their organic sections, more so on juices and shelf products. I'm not sure if you know, this is all significantly more expensive... I just don't want you being shocked. To find local places go online, and if you have any questions regarding types of organic products I would be more than happy to help!!
More and more grocery stores are carrying organic foods. Some stock them throughout the store while others have a special section for organic and natural food. Do you have a Whole Foods Market nearby? I don't, but I've heard they are amazing. Also, check online.