I got lucky with three trains in about 15 minutes, with this shot of the westbound perfectly timed as the eastbound was done passing. These trains were moving pretty fast, especially the UPS intermodal hotshot coming at the camera. I used the High Pass technique in photoshop to sharpen. I only went +1 on the color saturation in ZoomBrowser, the lead engine seemed like it was fresh out of the wash. I probably shouldn't have used any saturation at all. I used my Sigma 30mm F/1.4

This was taken in Lisle IL, between Chicago and Aurora on BNSF (formerly CB&Q).