Hmmm... Germans say Dutch sounds like someone's speaking from his lower abdomen or something... so not really a nice language, probably... (although I find Middle Dutch highly amusing...but that's of course only for reading)

I would like to learn Arab one day though (tried it, but dropped out due to laziness), but personally I would already be glad if I finally learned to speak French fluently.

Oh, and I would very much like to learn to say ugly words and insults in Russian. When a friend of me and myself went to pick up another friend in Oxford, it once again occured to us how nice it is to say what you think of people without them understanding it (Dutch is perfect for that goal), but of course that doesn't really work in the Netherlands, so we think Russian would be a nice alternative... It sounds really cool anyway.