I don't care for the presliced ham either. They don't do as well, even in the oven'
I have the Fix=it and Forget it Slow Cooking book. I haven't done a lot , but, like you, am trying to do more.
I am thinking about getting one of those bigger crocks. The 5 quart. I don't think mine is that big, but , can't find it on the pot just how big it is. A chicken fits in it pretty good, but, I don't think that turkey breast would have fit. I want one for that. Storage is the main problem, though