If you're looking for cheats there's a great savegame editor that works with the PS2 Emulator AND with actual exported saves from the PS2, I can't post links but it's on the PCSX2 forums under tools/applications/homebrew.
actually just google FFXII IZJS Editor
from the readme:
Edit Gil, Clan Points and Game Time (useful for changing the weather in Giza Plains).
Activate/deactivate Weak-Mode (when Weak-Mode is activated, no EXP are gained for defeating foes). Now for FFXII too!
Activate all Gambits.
Activate all Teleport destinations.
Activate Espers on the license board.
Party editor. You can add/remove/replace characters in your party. A total of 29 characters including guests and espers are available for selection.
Edit characters stats, job and equipment (includes extra equipment such as Omega Mark XII's laser beam weapon).
Complete License Board editor. You can activate or deactivate any particular license of any job.
Gambit editor. Edit Gambits for characters including Guests and Espers. Also, it comes with extra Gambits and Actions that are unavailable through the game.
Status Effects editor. Includes about 150 of various effects (immunes, weakness, absorb etc...).
Equipment editor. You can add/remove any weapons, ammunition, armor, accessories.
Item editor. Potions, Elixirs, Motes, etc...
Ability editor. You can activate any Magicks or Technicks.
Map editor. Ivalice maps and candles.
Key Items editor. Monographs, keys, trophies, etc...
Bazaar Goods editor. Activate any particular Bazaar item or reset History for already unlocked Bazaar Items so they can be reactivated by selling necessary loots in the game.
Sky Pirate's Den editor.