Lately I've been looking into different types of photographs and the history of photography. I would love a semi-cheap way to take some "old school" photographs. Perhaps a good Camera Obscura, or a tintype... Any suggestions? (also, I don't fully understand infrared photography, a link explaining it would be awesome.) I have always used Picasa for general photo editing as it seems to suit my needs quite well, but for the "more advanced basic" editing I would love to use Photoshop (I have CS3, thinking about upgrading) or something like it, but I am unsure how. Do you know a good video guide that will help me get started? Just on simple photo editing though, not manipulation and extraction and stuff. Thanks!