I can't vouch for them but I know Rogue does the same thing with their kits. They then link you to a site where you can buy the yeast.
As far as what you want, it depends on what you want to do. Safale makes fine yeast if you aren't looking for an added pop. Or you can go White Labs or Wyeast (ideally with a starter) and bring out the hops. White Labs California is pretty solid, can't go wrong, or maybe their Pacific? hard to pick one but with a good amount of research you should find the right one.