There’s now another method besides sIFR (scalable Inman Flash Replacement) or even @font-face for fancy text replacement. It usees Javascript and is called; Cufon.
Easy to explain technicality is you’ll have to convert the font library you want into a font Javascript library – hope that makes sense. Then, get the Cufon library running and define the headings you want to replace.
And yes, Cufon now only promotes usage of text replacement for headings. While some may argue it’s not flexible enough, it’s enough for me. Sitepoint has done a good job comparing between the pros and cons of existing text replacement methods.
Do you use an image text replacement technique for your projects now?