While you're waiting, you might have a look at Essential Acoustic Percussion. They've got ACID loops of bongos, claves, congas, cowbell, djembe, all sort of shakers, sticks and tambourines.

It's not specifically "latin", but it's got a fairly good bang for the buck. I found it useful for adding bits of percussion when I was working with drum loops.

Joe Vitale: Latin Percussion looks promising as well, but I don't own that so I can't really comment.

Of course, it would be even nicer if PG Music included a massive loop set.