I have traveled once on Holland America Lines with an Atlantis Charter. HAL is amazing. This Tour hits all the right historical sites, from Istanbul to Ephesus in Turkey/Asia Minor to Jerusalem to Cairo and The Pyramids. Round trip Athens. 12 days. Also Black Sea. A historical classic tour that should be on any history travel oriented guy's list of top ten places to travel.
I am looking to share a cabin with a compatible guy. I am also looking to have a mate to be able to have single guys eating together as opposed to a single eating alone. Also, being able to do some activities on the ship as well as the land excursions.
HAL is world class service.
http://www.hollandamericalines.com
-> search for "12 day Black Sea, Egypt and Holy Lands".

