Re-development is never easy in America's cities. Land acquistion, site clean-up, codes, even NIMBYism make new development in existing neighborhoods difficult.

But our guests today are proving that redevelopment is not impossible.

McDuffie Nichols is director of the National Trust for Historic Preservation's Community Revitalization Preservation Development initiatives. He previously ran the organization's Main Street program. His focus is on revitalization of commercial districts.

Mac has managed the National Main Street Center's technical assistance to community and state Main Street programs throughout the U.S. and has extensive sustainable community development and commercial revitalization experience. He was appointed to serve on the Governor of Maryland's Smart Codes Steering Committee to design a rehabilitation building code and Smart Growth development guidelines. He assisted in the development of urban neighborhood commercial revitalization programs in Boston, Baltimore, Washington, D.C., and Detroit. Mac also served on the International Franchise Association Emerging Markets Committee for increasing minority and women-owned franchise businesses and as a member of the board of the Responsible Hospitality Institute, focusing on the development of entertainment districts.

Charles Brewer is working on a major new mixed use development in Atlanta's inner city called Glenwood Park. Although the first homes are just nearing completion, the Congress for the New Urbanism has already recognized the Glenwood Park Design for neighborhood design excellence.

Charles is chairman of Green Street Properties in Atlanta. He is an experienced entrepreneur having founded MindSpring Enterprises, a company that grew to be one of the largest Internet service providers in the country, and consistently won praise for having the highest quality of service and highest customer satisfaction in the industry.

We'll talk to Mac Nichols and Charles Brewer about the challenges and rewards of redevelopment on the next "Smart City."