i am after some of the following:

Bolero
Bachata
Beguine
Rhumba
Simple Bossa (not fast or orchestral)

i currently am using the GW-8 with the Roland G70 style set but i was wondering if other Roland users have found or made some better ones? i am more into simple backing tracks with only a drum kit, bass, strumming guitars and 1 or 2 other tracks max.

thanks!