Background: I'm mostly a Mac user and have tried out Inkscape and even created SVGs with it, but it is highly user-unfriendly, it uses CTRL as the modifier key. I found VectorDesigner which seems promising so far. I also use Windows and Linux (Xubuntu and Ubuntu for desktop applications) so either of those would be great too.
So, finally: What are cheaper alternatives to Adobe Illustrator on Windows, Mac, Linux?
Thanks!

