It would be helpful if you provided more information about what sort of advice you are looking for. For starters, regarding the floor, find a flooring store and go look at samples of products. They will also be able to give you prices of the materials (and perhaps installation) and can answer questions related to subflooring considerations.

The same advice would apply to paint. You can glean a lot of information from employees of a good paint store. It is also very important to gather color samples, take them home, and hold them up on the walls of the rooms you intend to paint. Paint colors will often change character in different light situations.