Modeling from schematics in Hexagon
I've got a couple of tutorials published with modeling tips in using Hexagon. The example I've been using is one of the ST bridges.
Hexagon does not require large images for references so I'd suggest resizing the choice down before placing them on the grid.
Edit: --- tutorials pulled ... getting real tired of that spammer and the speed problems
edit: Here's a link to a page with a link to an image of the plaque for this bridge, and a couple of others. n.b. that not all of these designs were actually used.