Finally Final Fantasy XII is decently playable on my PC. With average 30fps (pcsx2 0.9.5 beta svn 227 + GSdx 0.1.2) this PS2' great title almost feels at home.
If you need FFXII cheat codes, make a new notepad file named 0779fbdb.pnach and place it in pcsx2 /patches folder. Paste the text below :
gametitle= Final Fantasy XII [SLUS 20312] (U)
Those are for Gil, License Point (LP) and Experience. You can edit the values to your liking. The LP and Exp are Vaan's. So if you already play it for sometime and already meet with other character you may have to find their codes one by one, pcsx2 cheat tutorial explained here. This codes used best when starting a new game, you don't have to worry about other character because they will keep up with the main character when they first meet.
You won't see level up immediately after entering new experience point. You must fight first and then let it do the math.