I saw a link to the following site in the Wall Street Journal today. I haven’t tried it yet so I have no opinion on its usefulness but its calculator looks interesting. It seems to make its money from selling advertising to builders which is fine, so long as using it doesn’t result in a flood of junk email. Anyway here’s the site:
Why don’t you try it first, then tell me if your inbox chokes on spam?
latest on Fuld: http://www.ft.com/cms/s/0/5022fd98-c89a-11dd-b86f-000077b07658.html?nclick_check=1