Fort-Worth(.)org is for sale. From Wiki:

"Fort Worth is the fifth-largest city in the state of Texas and the eighteenth-largest city in the United States[1].

Situated in North Texas, Fort Worth covers nearly 300 square miles (780 km²) in Tarrant and Denton counties, serving as the county seat for Tarrant County. As of the 2006 U.S. Census estimate, Fort Worth had a population of 653,320. The city is the second-largest cultural and economic center of the Dallas–Fort Worth–Arlington metropolitan area (commonly called the Metroplex), the fourth-largest metropolitan area in the U.S. with a population of 6.8 million in sixteen counties. Fort Worth and the surrounding Metroplex area offer numerous business opportunities and a wide array of attractions."

Another interesting thing listed there - the city's growth over time. Here's since 1990:

1990 447,619
2000 534,694
2006 (est.) 653,320
2007 686,850

As you can see, it's a rapidly growing city. In addition to being as big as it is on its own, it is very commonly mentioned in conjunction with Dallas (most notably airlines ALWAYS say "Dallas/Fort Worth" instead of just Dallas).

Price: $1,000

(hint: BuyDomains has FortWorth.org listed for $169,600!)