@Asheilin: They're all in "C:\users\[USERNAME]\Documents\My Games\FINAL FANTASY VIX - A REALM REBORN" Each FFXIV_CHR folder is a different character, I'm not sure how to tell which character is which though. The .DAT files hold the UI data and other client-side data and most of their names are fairly self-explanatory.

Hijacking the thread a little bit to ask another question:

Does anybody know a decent program to sync a specific folder from one computer to another? I usually use dropbox to move my UI layout from my regular PC to my laptop whenever I know I'll be using it for FFXIV, but I'd rather just keep the files on my laptop synced with those at home. I've tried SpiderOak before (I think that would do the trick), but it's rather clunky and I'd prefer not to rely on it.