Later in game:
1) Cane of Corpus - Kill Don Barlone.
2) Light Sword - (Random) Buccaneer ghosts in Bayjin Swallows or chest in Hut in Bayjin 2 down from hut with sgt glumph and jan-ette.
3) Excalibur - (Random) Davey Jones locker in Bayjin Swallows or Queen's chest in Upper Rapax Castle.
4) Muramasa Blade - (Random) Davey Jones locker in Bayjin Swallows or Queen's chest in Upper Rapax Castle.
5) Zatoici Bo - (Random) Queen's chest in Upper Rapax Castle or use Deposit slip in Kings room Upper Rapax Castle.
6) Fang - Southeast Wilderness in Cathedral like building.
7) Diamond Eyes - (Random) chest.Early in game:
1) Bloodlust - Arnika bank vault antone's keycard.
2) Diamond Epee - I think is in Arnika also.
What I look for are weapons that have extra "to hit" ability and have a good effect, like:
Knockout
Kill
Paralyze
Sleep
Blind
Ferro has some good weapons/great armor in Rapax castle.
Some of his armor has HP regeneration, Stamina regeneration, and Magic regeneration.
These armor pieces are available for many professions!
Later,
HBK21GOD