Nice discussion about what high dynamic range (HDR) issues for digital photography are, and a brief review of a program that helps automate the process of taking a number of bracketed RAW photos, stacking them, and adjusting the tone map to get the results you desire:
http://www.outbackphoto.com/workflow/wf_a106/essay.html
http://www.outbackphoto.com/workflow/wf_a106/essay.html