I've been doing my turkey breast for the last couple years in my crock-pot, too, and love it. You don't get the crispy crust of an oven-cooked bird, but it comes out very moist and delicious, plus frees up your oven for the rest of the big meal.
I hadn't thought of making a gravy with the turkey, though, thanks Roy. What kind of vegetables did you cook yours with? Liz.