hey, DofT, i know it is by no means a full answer to your Q, but i heartily recommend the commentary of Aeneid X by Stephen Harrison - this is perhaps a very subjective view on the commentary (given that he tutored me for 4 years) but it is a pretty stirling effort in my opinion, and very much in the vein of good latin commentaries. and done while he was still a graddie.

the austin commentary is pretty stonking too.