Sacred Underworld patch v2.28 removes the protection from the both Sacred games(Sacred must be Plus + patchv1.8.26 for that to work). The info was on the Ascaron forums,but somehow I've missed that(the patch is from late november and I didn't had Sacred installed back then).
So here is the install order: Sacred, Sacred Plus, Sacred patch 1.8.26, Sacred Underworld(your choice of install - standalone or overwrite), Sacred Underworld and patch v2.28
Link for patches:
http://eng.sacred-game.com/downloads.php?
X3: reunion patches v2.0 and 2.02 are removing Starforce protection from the game. Also they add a few extra missions and ships.
Link for patches and notes:
http://www.egosoft.com/download/x3/patches_en.php
Kinda of old news, but some people might want to know, before asking for a crack.