3D modeling, some linux links

0 ) How I printed the first models this weekend

(mac OSX, so I could use sketchup...)

http://dailycmd.blogspot.fr/2013/03/3d-printing.html

1 ) I already tried

http://www.openscad.org/
http://www.makerbot.com/blog/2011/01/19/openscad-basics-the-setup/
http://edutechwiki.unige.ch/en/OpenScad_beginners_tutorial

http://repraprip.blogspot.fr/2011/05/inkscape-to-openscad-dxf-tutorial.html

2 ) other soft doing the same kind of thing (CAD)

http://assimp.sourceforge.net/main_features_formats.html

http://www.blender.org/
http://en.wikibooks.org/wiki/Blender_3D:_Noob_to_Pro
http://blendernewbies.blogspot.fr/

http://brlcad.org/wiki/Overview

http://sourceforge.net/projects/free-cad/

http://www.sweethome3d.com/

http://www.artofillusion.org/

http://www.k-3d.org/

http://konstruktor.influx.kr/
http://www.ldraw.org/

http://www.gcad3d.org/

http://sourceforge.net/projects/varkon/

3 ) Lists of comparable softwares for 3D modeling / CAD

http://reprap.org/wiki/Useful_Software_Packages
  CAD :
http://reprap.org/wiki/Useful_Software_Packages#Open-source_software
  To deal with STL files :
http://reprap.org/wiki/Useful_Software_Packages#Open-source_software_2

http://www.techdrivein.com/2011/08/8-best-cad-apps-for-linux.html


... so if wine+sketchup doesn't work, there are plenty of other options!