What Kinds of Custom Job Work Have People Done?

[Darkholme]

I'm looking for examples of replaced or heavily reworked jobs.

Mostly looking for some ideas of things people have used in the past.

I'd like to hear how people implemented a few staples, as well.

"New" Classes
Blue Mage,
Red Mage
Gadgeteer
Sage

Reworked Classes
I'm interested in hearing how people have managed to revamp the following classes that I never really liked the implementation of in FFT:
Archer
Geomancer
Ninja
Samurai

I'm quite interested in hearing what other have come up with.