Another great photo. I'm watching your photos for some time and it's still a mistery to me. Are you doeing multiple shots or is this only one raw, cause the dynamic range is huge. I can never reach such effect.
Thanks! For shots with predominant windows I usually merge multiple exposures to one image. I don't use HDR techniques like tone-mapping, but an approach called exposure fusion or exposure blending. For this, I usually use LR/Enfuse (a Lightroom plugin) or Photomatix Pro. After fusing the images, I use Lightroom to adjust colours, contrast and so on.