Hey guys, I was just at Sears yesterday and bought this 21 Piece drill bit set for 15 bucks. Considering the bits are 2-3 bucks a piece alone I'd say it was a good deal. I can't comment on how they perform but still, it was a good deal..
Comes in a cool metal red case too.
EDIT: It says that type of bit is good for anything up to "soft metal", which I assume is aluminum. I'm guessing they wouldn't fare well with steel.