I picked up a new Greek Grammar recently:
New Comparative Grammar of Greek and Latin by Andrew L. Sihler
720 pages of Oxford published of comparative grammatical delight!
Its not bound well – glue injection – but even still, there a whole lot of amazing information in here on both Greek and Latin morphology as well as Proto Indo-European. Much of the Latin I’m leaving to my wife, since she studied it for 4 years and I didn’t.
I’ll be reading through this and comparing it with what I’ve done in my Greek morphology parser over the next several months. Hopefully, there will be improvements made as a result.