Links and resources
Here are a few resources for reading the commentaries of the Fathers of the Church.
http://www.newadvent.org/ Has the Nicene Post Nicene Fathers other known as the NPNF. You can get this in book form also.
InterVarcity Press has a series of commentaries called the Ancient Christian Commentaries. These are good to read.
There is of course the standard commentary from the Blessed Theophylact on the Gospels - You can find Theophylact's commentaries here along with other commentaries.