A few weeks ago, Steph and I signed up for Farm Fresh Delivery, and they bring us an assortment of organic fruits and vegetables every other Thursday, including some we wouldn't ordinarily buy. It's been fun to try new kinds of produce, and we can change the items if we find we can't face another head of broccoli or more apples one week. (If you should decide to sign up, please use my name as your referrer and we'll get a discount of some sort on our next order.)
I recently came across two articles online (unfortunately, I didn't save the links) that listed foods that derive the most benefit from being produced organically and those for which it doesn't matter as much. Here they are.
Foods that benefit the most from organic production:
Foods that don't contain a lot of pesticides anyway if they're not produced organically: