Karim gave the British Answer. On this side of the Atlantic:
The 250 Nighthawk is discontinued, last year was 2008. Replacing it for 2009, similar in appearance, much more modern, is the Suzuki TU250X. Not available in California. These are 250's, about 320-330 pounds on the road. Same as the 250 Cruisers Yamaha Viargo/V-Star, Honda Rebel and Suzuki GZ250, If you want something more highway worthy you can get what I ride: Suzuki's S40/Savage -- only about 50 pounds heavier and is a 650cc single cylinder cruiser. (All the other cruisers are 100+ pounds heavier.) Still in the old school style, but larger, heavier, and more expensive, MotoGuzzi V7 and Triumph Bonneville.