Buffer-specific face overrides

[Paul Moore]

Is there a way in Emacs to specify the value of a face on a buffer-local basis? 
I know this is possible in XEmacs using specifiers, but these are not available 
(AFAICT) in Gnu Emacs, and I haven't found an equivalent.

As an example of what I want to achieve, I'd like to set the background colour 
of the *scratch* buffer to something different from the colour I use for other 
buffers.

I've checked the manuals and the FAQs (including the Windows one) and searched 
via Google (but it's hard to know what search terms to use) and haven't been 
able to find anything.

My Emacs version is GNU Emacs 21.3.50.1 (i386-mingw-nt5.0.2195) running on 
Windows 2000 (and also XP Pro).

It's not a big deal, but it's something I haven't been able to transfer over 
from my XEmacs setup so far.

Thanks for any help,
Paul.