I thought this issue was settled a long time ago.

this link:

http://www.stevequayle.com/Giants/Mid.East/Giants.Mid.East10.html

contains some quotations from Josephus on the matter. just scroll down a little.

I can't vouch for the site, but even Finis Dake in his famous Bible commentary quotes Josephus on this matter. he (Dake) also is of the opinion that certain monuments/buildings on the earth simply could not have been built by man - that these giants (sons of fallen angels who had relations with human women) had both strength and knowledge not available to normal humans. The Bible clearly states there were many groups of these beings living in various places.