http://www.scdiet.org
For less restrictive options, take a look at The New Eating Right for a Bad Gut and Listen to Your Gut. Both books have specific recommendations for various symptoms.
http://www.amazon.com/New-Eating-Right-Bad-Gut/dp/0452279763/ref=pd_bbs_sr_1/105-1230798-0579644?ie=UTF8&s=books&qid=1193407717&sr=8-1
http://www.crohnsalternative.com/