I'm not well prepared for this kind of stuff; looking at Mark De Pristo's notes on bioinformatics programming in Scheme reminds me just how little I know.
Paul Graham's article Beating the Averages is interesting. Lisp programmers (and functional programming advocates in general) have been saying this kind of thing for years. I suspect they're right but at this stage in my career, my job prospects depend on knowing the usual suspects (C/C++/Java/Perl). It's a pity because the idea of trying something different, especially something that would give me an advantage over the competition, appeals to me.