Here's an easy way to make money, and all it takes is a little bit of your time. Create as many characters in The inn as you can, add Them to your party with one of your regular party members, and delete the newly created characters. Your party regular will receive all of their starting gold: 200 gold pieces per character.
Alternate Method
After a little game play you should have a little bit of money. Pool this money onto one character and take him/her into the Inn and remove him from the party. Then add him back and pool the gold onto your main character and remove the same character again. You can do this for a little while say up to 50,000 or 100,000 gold pieces. I suggest at this amount take your full party outside and go to the armory and give the gold back to the same character as before. Then take your party back into the Inn and remove him again, then add him back and pool gold again this time it will increase by 50,000 or 100,000 each time instead of 1200 at a time.