Thanks for the answer, but I'm not really sure if I need that ... WordPress itself has localization for german already ... and to hopefully clear up what I'm trying to, this is what I just posted in the qTranslate-Forum at
http://www.qianqin.de/qtranslate/forum/viewtopic.php?f=3&t=2286:
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If I understand correctly, qTranslate not only can take care of my multi-lingual posts, but also translate the rest of the site? As described in:
http://www.qianqin.de/qtranslate/forum/viewtopic.php?f=3&t=3&p=15#p15
So, for example my chosen html5-template "Constellation" has this in "sidebar.php":
<h3 class="widget-title">How awesome is this poll?</h3>
And I'll change it to:
<h3 class="widget-title"><!--:en-->How awesome is this poll?<!--:--><!--:de-->Wie abgefahren ist denn diese Umfrage?<!--:--></h3>
But ... I'm sure I'll have to add some PHP at the beginning of "sidebar.php" for this to work?