Right outside of Markarth, there is a mine that is Lush with Gold, although there are forsword infested in it, once you kill them, the amount of gold that is in that place should give you about 40 bars.
---------- Post added 2012-08-12 at 12:56 AM ----------
If they come running at you, you could run away, block them back with the Bow, or use your Thu'um to push them away.