Here are some links to some cam & head files posted online.
http://www.smokemup.com/utils/cams.php
http://www.chevyasylum.com/dyno2000/Welcome.html
http://www.scottysplace.net/Resources/software.asp
http://www.carbdford.com/Dyno2000/camshaft_files.htm
http://www.cobralads.com/butcher41.html
These are all US based cam and head flow files.
It would be nice to have anyone who has access to accurate cam profile data and flow information for other makes/models to make this available.