Christmas Gift Ideas for an 11 Year Old Boy?

We have a store called game stop that sells new and used video game consoles and the games. Most of these games and a couple of the console are under the 50 dollar mark.

Post Christmas ideas - save for birthday. I have 2 boys that are into that gamestop store. I give my sons cash because I never get them what they want, but I do take them to the stores that they might want to spend their Christmas cash in.

One of them is constantly on ebay for those games whenever he has the $10 down payment i require before he can even look to see what might be available on ebay.

CASH - it is the way to go - even my teenage daughter wants the cash (she saved her money and got an ipod this year).