Just out of comparison, I looked at the California State's college / tuition costs. Unfortunately "tuition" is mixed in with "fees"....
CSU | Student Academic Support | Campus Costs of Attendance for 2006-2007
But I have no idea of child-care costs in this state. Pretty sure that you cannot find child-care costs less than $3500 per year here (for a single child).
---------------
Jim -- from what I see in your state college system (below) tuition is a whopping 4.5k or so (depending on which university). For two children (tuition alone) that would be 9k... so your future child-care costs are above what they stated in the otiginal article.
http://www.cspohio.org/csp/Downloads...s%202007-8.pdf
By the way -- congratulations.
----
I guess the article is pretty conservative then. It certainly looks it.