I'm good with meeting with the Dain, and getting on our way.
I was thinking about whether meeting with Drizzt might be helpful or harmful for our party. He could be a guide/mentor, or he could be a foil, tough to say. Jack would be skeptical of Drizzt's intentions, just due to preconceptions about the underdark, so that's why I haven't made any post that would lead in that direction.