What is the best XServer font configuration to use with international fonts (Cyrillic/Chinese/Korean)

[Yuri]

I use the following font section:
Section "Files"
    FontPath   "/usr/local/lib/X11/fonts/misc/"
    FontPath   "/usr/local/lib/X11/fonts/TTF/"
    FontPath   "/usr/local/lib/X11/fonts/OTF"
    FontPath   "/usr/local/lib/X11/fonts/Type1/"
    FontPath   "/usr/local/lib/X11/fonts/100dpi/"
    FontPath   "/usr/local/lib/X11/fonts/75dpi/"
    FontPath   "/usr/local/lib/X11/fonts/local/"
    FontPath   "/usr/local/lib/X11/fonts/TrueType/"
EndSection


And I have many problems showing Cyrillic texts in Firefox. Letters are 
too thin.
Some specific Belarus language issues too.

What is the best font configuration to use to show all those languages 
nicely?

Yuri