Welcome! Do you prefer hand-drawn maps, or do you use a particular software package? As a board game designer, you'll probably be particularly interested in the Conquer Club maps that have been posted. I'm pretty sure you can find them with Redrobes' keyword index: http://www.viewing.ltd.uk/Temp/CG/In...word_Index.htm
Edit: Oops! I was wrong; conquer club isn't indexed. Just use the forum search feature at the top for it, and you should find a few.