Probably about ten years ago I discovered the website http://www.earlychristianwritings.com/ and saw that one of the resources it had online for many of the writers was the section from Tixeront. I found that they were decent, even if quite dated, summaries of issues for these writings from a Roman Catholic perspective of his time.
That said, things are different now. Bauer has written massive studies of the early church. Actual Gnostic writings have been discovered, and so we can read their side of things to.
I have been working on this, off and on, for a while. Part of me wants to hold off until the whole work is done. Another part looks at how I have off and on worked on this and figures it is worth it to put a decent chuck out there. That part won, and so offered here is the first hundred odd pages - Part 1, which covers the first 3 centuries.
I have tagged a fair amount of documents, but have probably not been entirely consistent about when I tag them.
Source is from http://archive.org/details/ahandbookofpatro00tixeuoft.
If I finish more of this, I will update this thread.
SDG
Ken McGuire