Let's not forget Dual-Wielding. Fable 2 needs slick dual-wield moves aswell, don't you think?
Something like:
Two-Handed weapon damage: 100%.
One One-handed weapon damage: 100%
Two One-Handed weapon damage: 75% main Hand 50% off-hand damage
Hmm...I guess we need shields too, to not put One-handed weapons in too much of a disadvantage, giving shields a per-centage to block damage.