I use a Nikon D50. This particular shot was with a Sigma 10-20mm lens...probably set to 10mm. I shoot in RAW and use the Nikon RAW editor before opening up in PS. For post-processing I use PS CS2 and typically use Hue / Sat, Curves, Contrast...the usual stuff.
After I finished cycling I drove back to this location. My knees were in the dirt..and I was still so sweaty that all the dirt stuck to me. I almost always get down low for my shots. It affords me a more natural gradient of the sky.