So I did some googling and came up with this recipe for pumpkin cream cheese muffins. I prety much followed the recipe and they were great. (I did leave out the pecans) I love the crumbly topping on top.
Incidentally, I was "chatting" with a friend and she had never heard of muffins with cream cheese in the middle of the muffins! I was shocked, as this friend is a pretty good cook/baker in her own right!
The verdict? Good recipe, we'll use it again.