I had meant to post this awhile back, but somehow neglected to do so. But, better late than never, right?
If you haven't already run across this excellent blog post by JavaFX architect Richard Bair entitled, "How to Embed Fonts
" then I recommend you check it out. With this very informative posting you'll see how easy it is to use custom fonts within your JavaFX applications. Now, get out there and build something great!