>I am looking for some ideas as to what tools to use in "conceptual design", and how is it different than logical design.
>
>Any references to books, websites or threads appreciated.

I would say, Word is the primary tool here. Perhaps Visio to draw some screen design ideas.

Marcus's Book OOP With VFP 6.0 has a Word Use Case template and the last third of his book is about UML and design. Highly recomended.

BOb