
Real 3D modelling:
http://www.icengineworks.com/icewmain.htm
prolly too expensive for a one-off, but worth it if you do lots or share a 'lego' set!
fantastic idea - i wanna go!
Santa can I have a set please? 

Now that would make my exhaust fabrication a lot easier.
Can I play please...
A simple, but brilliant idea..I want some too!!
allready new that great idea, but the stuff is stupidley expensive.
grtz Thomas