FSI is your best bet for a lot of African languages: Fula, Hausa, Chinyanja, Kirundi, Kituba, Lingala, Moré, Shona, Luganda, Swahili, Igbo and Twi all have FSI courses. (As does Amharic, but that doesn't really count.) I'd be down for an African language- always wanted to dabble in something with tone. We could do Fula, though- while not tonal, it's still got more than enough nuttiness to please my inner tryhard.