For a discussion on the health concerns about consuming oats, follow this link to an article at the Celiac Sprue Association. Celiac.com maintains a list of articles about oats that you can go to from their site. You can also read Celiac Disease: A Hidden Epidemic (Collins, (c) 2006) by Dr. Peter Green and Rory Jones. It has a discussion on consuming oats, talking with your doctor and the safety of certified gluten free oats.
Talk to your doctor, if you've been given the go ahead for consuming certified gluten free oats, you can find them at: Gifts of Nature, Gluten Free Oats and Cream Hill Estates.
Before cooking oats for others who must maintain a gluten free diet make sure they have their doctor's okay to eat them.
As for me? I've talked to my doctor and she has given me the go ahead to eat certified gluten free oats.
Update 9/3/2007: Health Canada has updated their position on consuming oats. You can read more about it at Health Canada's website.