For all your (or my) free fonts needs comes Font Squirrel. For us web designers and developers Font Squirrel also features readymade @font-face Kits and a @font-face Generator.
A couple of other places to find free fonts:
FontShop Free Fonts
Even if you would use the @font-face Generator mentioned above, here are some nifty instructions (cause it's always good to know):
Bulletproof @font-face syntax
But what to do when @font-face doesn't work in older browsers? Then cufón might help. You can even combine cufón and @font-face with the help of this tutorial. Please note, I still haven't tried cufón. The demo sites look good though.
Photo by Håkan Dahlström.