Cannonade is a Napoleonic era board style wargame designed to be played on a hex board. While the board isn’t provided, the game does include counters for you to print out.
The Singapore miniature wargaming group that calls itself the NapNuts offers a page of Napoleonic Uniform Guides.
The Evolution of Napoleonic Uniforms website is an ambitious work. It is not by any means complete (could any project of this scope ever be complete, given the number of variations?), but is worth browsing through.
This site has some pictures and diagrams from the Sharpe film that centered around La Haye Saint. This is an outstanding resource for anyone wanting to build their own model of the farmstead.
For Napoleonics gamers looking for “something different,” there’s the Russo-Swedish war. Here’s some background and gaming possibilities: Russo Swedish War of 1808-1809