Dear all,

thank you for all your suggestions, offers, etc. It's enough now! :)

To summarize quickly (in the order that I'll try):

1) LASI
http://lasihomesite.com/
"LASI (LAyout System for Individuals) is a "general purpose" layout and design
system originally intended for integrated circuits."
License: Free as in beer, closed source

2) LayoutEditor
http://www.layouteditor.net/
"The LayoutEditor is an free GDS Viewer is a program to design and edit
layouts for MEMS/IC fabrication."
License: partially GPL(?), partially free as in beer, closed source, partially
low-cost commercial (different feature sets).

3) LinkCad
http://www.linkcad.com/
"thousands of engineers rely on LinkCAD to convert, view and transform their
designs, all with a single program"
License: commercial, starting from $1000
free 5-day trial version

I've left out commercial "full design packages", since that is not what I am
looking for.

Cheers,
Andreas

Dr. Andreas K. Huettel
Institute for Experimental and Applied Physics
University of Regensburg
D-93040 Regensburg
Germany

tel. +49 151 241 67748 (mobile)
e-mail mail@akhuettel.de
http://www.akhuettel.de/research/