Redbird Espresso or Redbird Blue Jag. Best price if you just buy a 5lb bag, which is nice to have on hand when you have new gear. Just do a forum search and learn how to freeze it and you'll be all set.
Roasted fresh and shipped priority mail the next day - can't say that about Kimbo. Cheap and cheerful, good quality, easy going, very forgiving.
Though this comment from you makes me confused:
.. I want it to be a bean that when you get everything right you know it...
It makes it sound like you want something that is hard to dial in / not very forgiving / has a very narrow range of parameters when it is actually good.
Is that what you mean?