What are you getting for your boys similar age?
They would both be pleased to have a new game for the DS and some books, but I'm thinking I must be able to come up with something rather more unusual/creative?! I've asked them and they haven't really suggested anything beyond a pack of Pokemon cards!
DS1 got mostly cash for his birthday from relatives, and he still hasn't spent it ... so he obviously doesn't need/want anything, does he?!
My one little inspiration is I could possibly pay for him to have a course of sailing lessons as his Christmas present .. but I'm not sure how well that would go down really.