You know I found a video on youtube: Dr. Randy Pausch - from Oprah, search for it, it's worth it! He gave a last lecture, he is dying in pancreatic cancer. He has some very uplifting things to say. I've been living an organic vegan lifestyle for years and I still find it surprising when people say "but that's too expensive!" but really, how much your health worth? Buying a BMW is not too expensive? Buying a big screen tv? Maybe I pay double or triple the price now, but maybe I can avoid cancer or other health issues later... Then was it worth it? If you have found out you have pancreatic cancer and you could just change one thing you did in the past would you say "I wish I would have tried everything so I wouldn't be sick today?" There is no guarantee of course, but at least you could have said, I tried to stay healthier. Why it is not enough to get all the toxins what we breath in and we eat, why do we put more on our skin, which for sure ends up in our body? It's our own choice, but I rather pay more now and live healthier later, to buy organic/natural foods are investment in your future health!

I've listened to the video by Dr. Randy Pausch. He mainly talks about the goals he accomplished and how important his family is.

The last Lecture (The first 10 minutes give you a good idea of his message)

Eating organically and living a healthy lifestyle is absolutely no guarantee that you will not still get cancer, especially these days with toxins coming at you from everywhere. But I agree, it is a very simple thing to change in your life and wholly worthwhile.

I made a post in November about the five main items to buy organic, you can check that out for a place to start, at least.

Is there any logical and scientifically based, that is to say approved by peer tested research,reason for eating organic food ? The only reason apparent in Britain is that it makes supermarket chains richer

There have been several studies (Barbara Kingsolver cites a few in her book "Animal, Vegetable, Miracle"), I will Google in a bit and get back to you.
Specifically, they've found that organic foods contain less pesticides (obviously), more nutrients and more flavor. Organic eggs have less cholesterol and more omega-3's, etc.

Okay, here’s some stuff…

Some claim it’s better for you (the organic societies and proponents are of course tops on this list) and some claim there is no difference (regulators people who may have an interest in corn-fed cattle, subsidies and often pesticide production appear here).
Check out this google search string: http://www.google.com/search?hl=en&q=scientific+research+organic
And these sites, too:
http://en.wikipedia.org/wiki/Organic_food
http://www.consumersunion.org/food/organicpr.htm
http://www.organicconsumers.org/articles/article_7996.cfm
http://www.organicconsumers.org/organic/organic_health_062903.cfm
http://www.mofga.org/tabid/166/Default.aspx
http://www.drgreene.com/21_869.html
http://query.nytimes.com/gst/fullpage.html?res=9C07E6DA...9659C8B63&sec=health
http://www.whfoods.com/organics.php
http://www.more.com/more/story.jsp?storyid=/templatedat...Organic_10262004.xml
http://solutionsproject.org/earth/Organic%20-%2010%20Reasons.pdf
http://www.mayoclinic.com/health/organic-food/NU00255
http://www.food.gov.uk/news/newsarchive/2003/jun/cheltenham

12 organic foods that are worth the expense -- and 12 that probably aren't
http://www.medicinenet.com/script/main/art.asp?articlekey=52420

I haven’t read through every word of these links, I’m just posting some information that I found. As with many things, the data is often conflicting and inconclusive, especially if your interest lies in seeing one side succeed over the other. We have to make our own choices and decide what sorts of things we feel most comfortable eating.

I'll check some of my books when I get home and see if they name the sources of the studies they cite.

Thanks for an excellent compilation of links, Elexina