Photo gallery and image display in a node.

Two questions have arisen:

 1- Can you suggest which gallery would be best to use so that multiple galleries can be viewed within a single node, and by clicking on one of them, you would transition to the gallery node, similar to how products are created in Ubercart?

 2- When creating a new content type, I need to display several images. How can I achieve something like in Ubercart where there is one main image and several smaller ones underneath?????? (I would use the Ubercart module, but it’s not suitable here)