I'm fully an Angel fan, but I have to say that this thing with Connor being given a new life was obviously "borrowed" from a Dark Angel ep entitled "Some Assembly Required," in which Max's 'brother' has his memory wiped and rather than helping him get it back she sets him up with a new life complete with a fake past.
She even uses a line at the end almost identical to Connor's in the "Origin" episode.
Max (Dark Angel, Season 2, "Some Assembly Required"): "But sometimes you have to make sacrifices to protect the ones you love. I learned that from my brother."
Connor (Angel, Season 5, "Origin"): "You gotta do what you can to protect your family. I learned that from my father."
She even uses a line at the end almost identical to Connor's in the "Origin" episode.
Max (Dark Angel, Season 2, "Some Assembly Required"): "But sometimes you have to make sacrifices to protect the ones you love. I learned that from my brother."
Connor (Angel, Season 5, "Origin"): "You gotta do what you can to protect your family. I learned that from my father."