When working on our schools year, I work with Jostens Yearbook Avenue and my students like to find their own fonts and use them on the pages.
The best place I have seen to find custom fonts is dafont.com and once they are installed on your computer you can then select them in Photoshop to use.
Once you create a heading with your new font, you must then save the image as a transparency. We always forget how to make the image transparent so we can set it over other images and backgrounds so I decided to make a video to explain it.
P.S. One guess what font I am using?