Embedding font into website

I am trying to find the best way to embed a font into my WordPress website. I want to show words with diacritics, so I need to be able to use a font that supports them. However if I post in a certain font and it is not installed on the visitors computer then the words they’re going to see are going to be messed up.

I’ve tried the CSS3 font embedding technique but haven’t been able to get it working properly.

I have looked at sIFR and so on, but I want the whole page of writing to be in that font and using sIFR would effect loading times quite a lot. Is there some good plugin or method of embedding a font for WordPress?

I’m also using FCKeditor which allows users to choose from a range of fonts. I wonder if there is some way to add fonts to that, but even if there is, the visitor won’t have that font on their computer.

So I need some way of embedding the font onto my website so that visitors don’t need the font to be installed on their computer.

Thanks