What problem is REALLY bugging you? 
nosse: I would need a decent 2D CAD for linux. 3D even sweeter. problem is that dudes who usually code and dudes who usually draw with CAD are two totally different breeds. And that's why we don't allready have a good CAD for linux.I would be possibly willing to pay 200eur for a copy(but I want to see a proper demo first), and I don't think I'm alone.And I don't need anything fancy like Autodesk's "AutoCAD revit architechture visual suite", just basic "draw lines and circles" kind of functionality.