Although my "Sibling Rivalries" course is primarily concerned with the occurrences of this phenomenon in the Hebrew Bible, I always have to be unique (read: difficult)... and so my term paper will analyze narrative and exegetical perspectives on the relationship between Jesus of Nazareth and his siblings. An abstract and an initial bibliography are available here. If anyone has any brilliant insights or additions, send them my way. If anyone doesn't like this topic, keep it to yourself. ;-)
And, providentially, Tony Chartrand-Burke has just posted his own missive on the family of Jesus, which he is currently covering in his "New Testament Apocrypha" course. Check it out.