Those look awesome! Another option would be to use the pumpkin chocolate chip cupcake recipe in VCTOTW, just leave out the chocolate chips and make the cream cheese frosting recipe in the same book. Both are super delicious. Re: cream cheese, I always just use Tofutti and have never had any complaints.
I thought about doing that so maybe I will - can't go wrong with any of the recipes in VCTOTW. The chocolate chips might be kind of good in the bars too.