Kilkenny of course!

It's yummy!
Check out all the swash stuff... buy the OpenType version.
Check out all the glyphs in the Pro version here:
http://new.myfonts.com/fonts/ihof/p22-kilkenny/regular/characters.html
(You might have to wait a bit for all the characters to load.)

Thanks John,

I love Kilkenny, but its still not as ornamental as I require, I'm afraid. I need it to be total overkill, kind of like this:

... or even more insane, if that's possible. I know a lot of this kind of lettering isn't digitized, so I've had a hard time finding what I need.

I ran into this a few minutes ago: http://new.myfonts.com/fonts/michaelbrowers/geistig/

They are monograms but perhaps with a little doctoring you can get what you're looking for.

I have an old book of letterpress type/ornaments with a lot of this stuff, including whole alphabets. There must be books in a library near you with this, perhaps a scan or a good photocopy would get you going? The original copyright would most likely be expired and if you set your own text with the letters (rather than reproducing a whole page of the book), you would (caveat: I'm not a lawyer, please check) not breach the publisher's copyright on the book.

Try browsing through the offerings here:
http://new.myfonts.com/foundry/Intellecta_Design/

Also, would Restraint work? The letters aren't ornate, but still...
http://www.tiro.com/Restraint/index.html

I second John’s suggestion.
Some examples:
http://new.myfonts.com/fonts/intellecta/surrey/
http://new.myfonts.com/fonts/intellecta/bruce-flourished/
http://new.myfonts.com/fonts/intellecta/victorian-ornamental-capitals/

How about
http://new.myfonts.com/fonts/dtptypes/pamela-dt/

Thanks all for your help everyone.

I was looking for the type because I wanted a reference point for a very embellished monogram. I still haven't found exactly what I'm looking for, but I think I'm going to turn to books with old type... I've found some beautiful stuff there.