I very easily become obsessed with new projects. My latest is infrared photography. After seeing some IR images online I immediately knew it was my kind of photography. I'm still working on procuring a camera. Some of the best cameras for this type of photography were made around 2000 and can be found on eBay but as with all things eBay, it can take a little patience to get exactly what you want.
I also have to get a filter, which seems a little harder to come by- I haven't seen any listings for the size I'm going to need but I'll keep checking. In the end I think it will be well worth it if I am able to produce images that are anywhere near as interesting as these. There's such a magical, mystical quality to IR images that fascinates me.
Photo by Paul at http://www.flickr.com/photos/dexxus/
Photo by Chad at http://www.flickr.com/photos/ch4dwick/
Photo by Kyle May at http://www.flickr.com/photos/kylemay/