I don't have CD either. And you don't have any problems with any other wheat type products? Bread, pasta, etc? Might be the amount or type of fiber for you instead of the gluten.
I've never tried gluten free oatmeal; I'll have to see if I can find some. But other gluten free products taste pretty good actually. My wife made me some gluten free cookies and they are yummy, though I don't know how well the fit in with IBS.