Check out the oak edition of BYO. Some tips that apply to you are:
A few oak chips go a long way.
Start with a small amount of chips and work your way up to get the desired amount of flavor.
Have another batch of the same beer ready to blend with the oak if the intensity is too much.
In beer, you can add 1/2 oz to 2.5 oz. Full extraction occurs in about two weeks. (Not sure of the batch size that they are referring to though for those amounts)