What's Worth Buying Organic?

This month's Cooking Light has a good amount of information on organic products. Organic foods can be quite expensive, and while I try to buy many organic fruits and vegetables, I have always wanted to know what's really worth spending the extra money on. According to some research I have done, foods that come with the heaviest burden of hormones, additives and pesticides are most important to be purchased organically when available. Here is a list I've compiled that can be used as a quick reference guide when shopping:

Buy Organic:
Apples
Bell Peppers
Carrots
Celery
Cherries
Coffee
Grapes
Kale
Leafy Greens
Lettuce
Meat
Milk
Nectarines
Peaches
Pears
Potatoes
Spinach
Strawberries

Buy Regular
These items are least likely to contain trace levels of pesticides.
Pineapple
Asparagus
Avocado
Banana
Broccoli
Cabbage
Corn
Eggplant
Kiwi
Mango
Onion
Papaya
Peas
Sweet Potato
Tomato
Watermelon

Sources: April 2009 Cooking Light, thedailygreen.com