The latest Humble Bundle offers battle maps, symbol sets and Profantasy mapping software:
https://www.humblebundle.com/software/maps-extravaganza-softwareWe’ve teamed up with Profantasy Software to offer this bundle for tabletop roleplayers and game developers who want to create stunning fantasy maps. It includes Campaign Cartographer 3+, as well as software for creating overland maps, dungeons and floorplans, plus thousands of art assets you can use with any design package.