You may have read this or known it already, but they pointed to a good article on the Hittites (pointed to by this website).
Here is the address in case you have not seen it.
http://www.biblearchaeology.org/file.axd?file=2011%2F12%2F11_08_11+Hittites+and+Hethites-+A+Proposed+Solution+to+an+Etymological+Conundrum.pdf