here's a link that really helped me, and it meant I could also actually BUY things that would help me in my diet quest for conquering my IBS

www.helpforibs.com

the cookbook on eating for IBS is amazing - but I have still yet to find many recipes that I can actually make on a student budget of, hmm, no money!

The key things for me (as baaaaaaad bad things to eat) seem to be:
- Red meat
- Really high fat stuff
- caffine

and as far as life-savers go, peppermint tea is not so much a friend - it's more of a saviour in minty form!

hope any of that helps