I agree 1,000 per cent with you on everything you wrote in your post and I have come to all the same conclusions as you regarding organics.
Organics has not only improved by ability to cope with IBS, but I believe it has helped me to be healthier overall. I haven't had a cold (touch wood!) in 15 months now and I avoided all the terrible flus and viruses that plagued everyone in my office over the past winter. I was also coughed and sneezed upon on the subway going to and from work and I still didn't catch anything!
Yes, the downside is organics is a little more expensive and I must put aside several hours every Sunday afternoon to do all my food preparation for the week. It's difficult to find that time in my hectic schedule, but well worth it.
I'm not sure where Retrograde lives, but if she is in the Toronto area, there is at least one co-op health foodstore here where she could help out for a few hours each week in exchange for discounted organic food. There are likely others in other cities in Ontario since it's a popular arrangement here. I could find out more if Retrograde or anyone else is interested.