Convert from NAD27 to WGS84

This datum conversion is often a pain for people. The following are a couple of utilities that you might find useful:
You could try this routine at http://www.fcc.gov/mb/audio/bickel/DDDMMSS-decimal.html

Or from the USDA - http://www.fs.fed.us/database/gps/datum/index.htm

See also coordtrans (with free trial) http://franson.com/coordtrans/

Convert from NAD27 to WGS84