Best foreign language to learn? (for an American)

Like alot of other people have suggested, I'd suggest Spanish. It seems to me that that is the most spoken language besides English in America. I'd suggest German just on the basis that I find it fun to speak, but that's not a whole lot of incentive for you to speak it. Japanese might come in handy in some cases, but it does seem that a large percentage of Japanese know at least some English, and if you're dealing with them in the job place, I'd imagine that would make it even more likely.

You make it sound like you can only learn one though. There's nothing holding you back from learning more then one if you want/need.

Jam it back in, in the dark.

Ok, maybe I didn't mean a large percentage per se. I know it's more common in larger cities and what not, as it is with most countries that English is a second language in. But if he's dealing with it in work, I'd imagine the people he was working with would more tend to know some English. That's more what I meant.

How ya doing, buddy?