Finally! A new FFT thread!

...sorry.

Anyway, I don't have an exact list or anything, but some stuff you can get by poaching monsters or by stealing from enemies (like the Ultimus Bow). Also, Move-Find Item (on a person with low Brave level) can get you some cool stuff if you know where to look.

If you want more than one of rare items (like Defender), you can use the weapon duplicating trick. (Someone else please elaborate, I can't remember off the top of my head.)