DALLAS— Two businessmen plan to turn the former Dallas National Bank building into a luxury hotel and have received $3 million in city funding for the project, according to a report in the Dallas Morning News. Robert Colombo and Rene Campos Jr. plan to convert the 17-story building, which has been mostly vacant for 10 years, into a 90-room hotel with 4,000 square feet of retail space, the report said. Colombo and Campos hope to start work on the $11 million project late this year or early in 2004, according to the report. Located between Neiman Marcus and the Magnolia Building, the office tower was built in 1927 to house Dallas National Bank. It subsequently had retail tenants on the ground floor and the upper office floors were remodeled by European investors. There is now a luxury apartment on the penthouse level. The downtown tax increment financing district funds were approved last week, the