(New York Times) — Steel beams arc high into the Brooklyn sky, flanked by five cranes that rise from a deep, divisive hole in the ground. Sections of prefabricated concrete seat platforms and concourses — the guts of every sports arena since Roman times — are now in place. Trucks rumble through the hot, dusty corner of the 22-acre site known as Atlantic Yards. There, shoehorned into one of the busiest intersections in Brooklyn, the arena for the New Jersey Nets is finally taking shape. After eight years of delays — involving eminent domain lawsuits, neighborhood protests, financial setbacks, the removal of its world-renowned architect to cut costs and the enlisting of a Russian oligarch to cover them — the arena, the site’s first building out of 17, is on track to open in September 2012.