A couple of interesting articles related to Roman Egypt in the last issue of Greek, Roman and Byzantine Studies (50:2010) that you might like to read too:
Maren Niehoff, ‘The Symposium of Philo’s Therapeutae:Displaying Jewish Identity in an Increasingly Roman World,’ pp.95-116. (See my comments on her study here.)
Philip F. Venticinque, ‘Family Affairs: Guild Regulations and Family Relationsships in Roman Egypt,’ pp. 273-294 (get it here).