Make sure to choose all the languages that you are fluent in.
[1] - http://en.wikipedia.org/wiki/List_of_languages_by_number_of_native_speakers
Nevertheless I think it was worth it. I acquired Spanish fluency as an adult and the experience continues to enrich my life.
Spanish is a good choice for English speakers because it's the world's second most widespread language. It's also fairly regular and overlaps some English vocabulary.
But you should, if you can find the time, try to learn at least one foreign language in your life, even if your first is the world's new lingua franca.
Technically, I know java, but after this semester, I'm done being forced to use it.
oh, I'm also fluent in English.
(I speak spanish well enough to have a conversation, but I wouldn't say I'm fluent. Got a 5 on the AP test in high school, but if you don't use it you lose it. :( )
Otherwise, I speak mainly American English ;)
I selected "Other" for Hebrew.