Floor Seating at PNC Arena wraps around the entire lower level of the court. For NC State games, these seats are occupied by rabid NC State students and are not sold to the public. For other events, like the NCAA Tournament, they are among the best seats in the stadium.
Be weary of baseline sections 110-113 and 125-128; however - these are behind the basket and do not offer a very good view of the court. Additionally, these baseline seats do not rise much, making it difficult to see over taller fans. If you don't mind be a little farther from the court, sideline sections on the 100 or 200 levels are far superior (or if you can afford it, floor sections along the sidelines are tough to beat).