Maybe something like this:
http://www.amazon.com/John-Sterling-BK-0103-22-300-Pound-Capacity/dp/B0009SUWEW/ref=sr_1_12?s=hardware&ie=UTF8&qid=1333217520&sr=1-12
I just think to be safe, use no less than three brackets like this for the length of the table. It would be preferable that the horizontal arm reach at least 1/2 the width of the table from wall to front edge. Those fasteners have to resist pullout from Aunt Bertha, or, perish the thought, Uncle Bubba.
