For those who might be interested in seeing the Greek texts of patristic works, I just found Migne volumes on Google books. These works were produced in the 1800's so for many of the works, there are no doubt better editions out there (I personally use the TLG CD). But what do you expect for free? Anyways, here is the link to get anyone started:
Be warned, there is no English translation with these. All the translations of the Greek texts are in Latin. Still, you might find these useful if used in conjunction with the ANF series, etc.
Mebaqqer
Link didn't work properly, so just search for inauthor:Jacques-Paul inauthor:Migne in Google books.