OT: Apache .htaccess question

[Ashley M. Kirchner]

    Looking for some gurus here.  I have the following snippet in my 
.htaccess file:

SetEnvIfNoCase Remote_Host "some.domain.com" ref_ok=1
<FilesMatch "\.(gif|jpe?g|png|css|inc|GIF|JPE?G|PNG|CSS|INC|js)">
  Order allow,deny
  Allow from env=ref_ok
</FilesMatch>

    ...which effectively prevents anyone from remote linking to any of 
those files anywhere on my web site (including those in sub-directories) 
except for 'some.domain.com'.  However, I want to _exclude_ a directory 
from that blanket matching:

    $web-soot/.htaccess
    $web-root/thx/         <-- I want to exclude this directory and
                               everything else that may be below it.

    Any ideas?

-- 
W | I haven't lost my mind; it's backed up on tape somewhere.
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  Ashley M. Kirchner <mailto:ashley at pcraft.com>   .   303.442.6410 x130
  IT Director / SysAdmin / Websmith             .     800.441.3873 x130
  Photo Craft Laboratories, Inc.            .     3550 Arapahoe Ave. #6
  http://www.pcraft.com ..... .  .    .       Boulder, CO 80303, U.S.A.