[okmjuhb]

"Programming Collective Intelligence" is quite good. I like "The Ruby Programming Langauge" if it's something you're interested in. "Learning Python" is probably beneath you but it'd be a good gift for someone who wants to learn programming. I've heard good things about "Real World Haskell" but haven't read it.

[jamesbritt]

Anyone interested in Haskell should get RWH. I forgot about it in my earlier comment, but it's well worth the $ (though there are free versions).