GURPS Dark Millennium
Since the EABA Dark Millennium source book is mostly flavor, it was a very easy conversion. In fact most of the things discussed had GURPS Parallels already. Status and Clerical Investment handle being a member of the nobility and clergy in a very clean fashion. The main thing I needed to convert were templates for the various forms of undead (which I've done) as well as for the Fallen (which I've not done yet). I'll post those templates at a later date, but they are largely based on the GURPS Fantasy Meta-traits for Undead.
Dark Millennium Undead
Advantages: Injury Tolerance (Unliving, No Blood) , Doesn't Sleep , Immunity (Metabolic Hazards) , Reduced Consumption (3) , High Pain Threshold , Temperature Tolerance , Unaging , Doesn't Breathe , Very Fit 
Disadvantages: Unhealing [-30], Uncontrollable Appetite (Sometimes) [-10], Bloodlust [-10], Dread (Sunlight) [-30], Supernatural Features (Pallor, No Body Heat) [-15], Vulnerability (Holiness, x3, Very Rare) [-15], Duty (Forces of Evil) [-15]
This meta-trait is the one shared by all the undead. As I said, it's based largely on the intact-undead meta-trait from GURPS Fantasy, but I added a few things.