Got this from work for free today, came in with some computers and it didn't come with a pen or software so my boss said I could have it. On the plus side, it's absolutely huge. On the negative side, it has no pen(Only came with the mouse). It works, but I'm not sure where I can get a pen that will work with it for cheap, it is an Intuos 3 tablet(Picture below with SD card for size comparison). Does anyone know where I can get a pen for cheap?