Got some new plug-ins Keith?
Most of the work is with the 5D Mark III's HDR mode. The lightning shot was first processed in DXO Optics Pro 8, then Lightroom. The lightning shot was one in an HDR where it was only 1 frame and slightly over-exposed. DXO handles that nicely. DXO is a totally different way of processing- it's a scientific way. High end DSLRs require the "Elite" version. http://www.dxo.com …y/dxo-optics-pro/features
Here's a sample of it's power: