Are there any programs that can actually do this? Blender’s normal map system is incomplete (had anybody actually read my “UV Winding Order” thread, they would know that), and the only thing that I can rely on in blender is bump/displacement/depth maps.
Nvidia has photoshop plugins for this, but they only work on Windows (and with my using blender, it could be viewed that I don’t have the money to buy photoshop).