Are Allen Edmond's New Orleans worth it?
You did not mention how much you dress up for work, the frequency you wear the two you mentioned, etc.
It's a bold look and if you want to wear them, rock on. However, I'd say that, if it were me in your position, I wouldn't make it my "third shoe."
For one, and if it is the one I am thinking about, it is a bit of a spring/summer looking shoe, especially the two-tone "spectator" version.
Also, even if it is the more conservative looking (relatively speaking) brown on brown version, if you are wearing coat-and-tie every day ... well, it wouldn't be my choice for suits.
You might consider something in a darker brown than your srands or a burgundy in a more traditional look. Maybe grab the New Orleans next year.
If by "... possibly cordovan," you are referring to the leather, as opposed to the color, then a burgundy shell cordovan LWB might work for you. Something like the AE Macneil or my vintage (Watergate era according to Nick V. at B. Nelson) Florsheim Imperials. Reasonable people disagree as to just how versatile a full fledged, double soled blankty blank gunboat is but I wear them with a great variety of things.
If you prefer a short wing oxford, you probably know AE's Cambridge is their McAlister/Jefferson in shell cordovan (same #5 last). To me, that would make a great "third shoe," giving you something in a style, color, and leather different from anything you have now, and - to me - a very versatile shoe. Finding a pair at less than full price is sort of my current "unicorn search."