What shall I get my bestfriend for his b-day?

I told him I was going to get him something for his bday, because he gave me his PS2 he no longer wanted. What do you think I should get him? I mean the PS2 was something he didnt want so I shouldnt spend too much back on his bday. And plus to the downsides we have also had some bad times ( a href="http://uk.answers.yahoo.com/question/ind…"http://uk.answers.yahoo.com/question/ind…/a ). Im trying not to let my feelings for him get in the way. We're 15 years old by the way.