i got my control set, 2 4/8-way joys and 12 action buttons, for about 27$ after shipping from
www.dreamarcades.com they let me choose multiple colors on the buttons (i got 6 blue and 6 green)
From all that I had looked at when I was ordering, they seemed to be the least expensive. I could obviously be wrong, but I am happy with my controls, though they are a bit on the loud side.
Hope that helps some.
-mal-