Here's a great tutorial on the corel draw programs quick trace feature. Its able to take a bitmap or jpeg and create a vector tracing that could exported to sketchup for working in the Phlatscript Enjoy Mark http://www.vectorials.com/tutorials/CorelDRAW-Power-Trace-X4-Video-Training-11938.html
Your welcome, Just thought this would be a good way to convert 'drawing' style 3 views to vector plans quickly Mark