Any language setup, other than the original American English, has two
issues:
Displaying the right characters (fonts) - for Hebrew it's
ISO-8859-8 standard.
Mapping the keyboard.
There is much more to Hebrew than that (like right to left, geometry in
X-Windows,etc), but this HOWTO (at least for the first draft) deals only
with the basic issues.
More information can be found in the various "national" HOWTOs
(German, Danish, etc.) and in the ISO 8859-1 HOWTO (ftp://ftp.vlsivie.tuwien.ac.at/pub/8bit FAQ-ISO-8859-1).
After the first release of the Hebrew-HOWTO to the Linux-il it contain all
the E-mail send to me regarding spelling/grammer and Tex-Xet, Mule and Vim
info.