Peanut butter and Cheesecake balls- Where are you??
Hey Jennifer - I had this post bookmarked, but haven't tried any of them yet. But, it should give you a good start.
http://www.obesityhelp.com/forums/recipe/postdetail/1552.html?vc=0
Substituting cream cheese (light or fat free) should be pretty simple - just sub it for all or part of the peanut butter and you should get the same consistency.
Enjoy them!!! Chuck