Use the following steps to get unlimited gold.

1. Place an item that is worth a lot of gold when sold to an NPC into the chest (for example, the instruments you can get on the Blind Guardian quest).
2. Quit the game and return to the desktop.
3. Create a backup of the the "chest.sacred2chest" file in the "C:\Users\\Saved Games\Ascaron Entertainment\Sacred 2\" directory in Windows Vista or "\Documents and Settings\\Saved Games\Ascaron Entertainment\Sacred 2\" directory in Windows XP.
4. Start the game again.
5. Take the items you want to sell out of the chest.
6. Quit game and return to the desktop.
7. Copy your backup "chest.sacred2chest" file to the saved game folder again, overwriting the current file at that location.
8. Repeat steps 4 through 7 until your inventory is full.
9. Start the game
10. Take the items and put them into the chest under "All Characters".
11. Quit the game and return to the desktop.
12. Create a backup of the "chest.sacred2chest" file that has the items in the "All Characters" slot.
13. Start the game, take the items out of your chest, then sell them.
14. Quit the game and overwrite the empty "chest.sacred2chest" file with the backup you just made. Repeat all steps until getting the desired amount of gold.