$25 on Amazon
http://www.amazon.com/Hitachi-799961-Drill-Drive-50-Piece/dp/B005F76SJK
I got a slightly larger version of this set as a gift a while back. The quality of the drill bits is awful. The masonry bits burnt out and dulled after a handful of uses. The spade bits were dull. The only pieces of any usable quality were the driver bits. Even the standard wood bits were of variable sharpness and some were warped.