Afro Pop

I've been listening to Vampire Weekend today, and thinking about all the interviews and articles about how they were influenced by Afro-pop.  My question is, would you please give some specific albums other than Paul Simon's Graceland?

Honestly, I'd love to listen to bands that sound like Vampire Weekend - the album is freakishly catchy, and I love Graceland too, and want to follow it all back to the source, but how?  Every article just says "Afro-Pop" as if I'm supposed to go, "of course, let me dust off all my Ghanan records and relive freshman year of college."

Complicating things is the fact that I actually have made some inroads on Afro-Funk.  I at least know who Fela Kuti is, I've heard a great band called Chopteeth, and there's this Ethiopian band on the soundtrack to Broken Flowers (you know them if you've seen the movie) that is sadly unavailable on iTunes. Unless I want to buy the whole album.

Maybe next time I'll talk about the things about iTunes that drive me insane, but for now, I'm on the hunt for great african music.