Thanks for the responses!
DrakeM: Re Tempo: I start listening to a style, and use the tempo buttons to set the tempo where I want it. Without turning the style off, I click on the next style on the screen. It immediately changes to that style's built-in tempo. Is there another way I should be doing it?
Thanks for the links. I'd looked at the files on the site, but wasn't sure I could use them on the SX700 since they only say SX900. Do they work on the SX700 too?
Franck: I'm probably a little too picky, wanting something really specific, lol. I'll definitely keep listening to what I've got.
Enildo: Thanks so much! I'll look into doing that.