Finding fonts is one of the most arduous tasks for a graphic designer. I always go to the free font web rings. You can do a search for "free fonts" on google. You basically will have all free fonts floating around the Internet in the first 10 results. If you want to pay for fonts go to fonts.com.
A number of graphics programs have filters that will give a regular font a "puffy" appearance. Fonts, by their actual structure, only describe the shape of the letters... any coloring or 3D effects, AFAIK, have to be applied with some kind of graphics software.
Ditto what mivox said... start with a normal flat font, and apply depth and color in your graphics program. Some inexpensive specialty programs like FontFX go somewhat beyond what a standard graphics program does and are good for web logos and the like. It's easy to get carried away, though, and create something that looks overdone (e.g., a fancy font with 3D-depth, beveled edges, a metallic finish, different front and side surface colors and textures, three light sources, and the whole thing rotated in 3D...)
Just use that catull font, and add a bevel filter, theyre built intophotoshop.. Im pretty sure thats all google did. You could always get the Eye Candy 4000 plugin to make cool font effects... Most font foundries have a 3D category.. Theres a whole category of good free font sources in the google directory