Nsfes works fine with foobar! I'll stop downloading nsfs in behalf of nsfes, thanks bucky!
edit: btw, there is something similar to .gbs?
There are m3u playlist files, but I'm not sure what they work with. Foobar most likely?
I've had no luck with winamp + in_gbs for reading the m3u files, and I'm pretty sure audio overload doesn't read them as well.