Thanks for your patient help, I am learning a lot. This is my (final, I hope) re-designed layout. What do you think?
10-32V to 5V 1.2A SMPS Buck Regulator Design. The IC is IFX91041 from infineon.
Here are the schematics and layouts: http://www.mediafire.com/?69e66eje7vda1
(I was given 45 cm² (~6.98 inch²) area for both 5v 1.2A and 35V 4A.)
I did a "print screen" instead of bitmap output.