We use a rather different version of the knock-out and death rules than GURPS.  Go ahead and try the
<a href="http://shadowdawn.evenmere.org/durability_calculator_input">Durability Calculator</a> --- I've found that it gave me a fairly good intuitive feel for how hard to hit things (OK, how hard to hit PCs).

Durability adds to your HT when rolling to see if your character passes out or dies.  It also adds to the "Racial HP/2" number mentioned in the [Knock-Out Rules]

If you want to include a Durability Table on your character sheet page, it's easy:

<pre>
&lt;dtml-let race="'Dwarf'" durability="10" ht="10" htk="0"&gt;
&lt;dtml-var durability_table&gt;
&lt;/dtml-let&gt;
</pre>

will produce:

<dtml-let race="'Dwarf'" durability="10" ht="10" htk="0">
<dtml-var durability_table>
</dtml-let>