Good Christmas Present Ideas for This Type of Person?

I'm looking for some really good ideas about what to get my 18 year-old nephew for Christmas. He's a really smart kid and I know he's always been interested in science. He's studying Psychology and Neuroscience at Columbia University; I don't know if you can think of any gifts that have to do with that, but I'm just trying to give you an idea of who he is. But he has a fun side too, (I know for a fact that he still loves video games and he's a really good dancer) and he loves reading. I don't know if I should get him something scientific (do college kids need microscopes or anything for at home?) or what, but he's a really great kid and I just want to get him something special. I would really appreciate any ideas. Thank you.