will you have a restriction on what displacement you can ride??
Anyways I suggest an Aprilia RS250(incredibly fast, light & beautiful) or a Kawasaki ZZR(very comfy & a perfect beginner's bike) for a 250cc, other bikes to consider are Aprilia Falco, Ducati 996/998 and MV Agusta F4....All are very capable ....I suggest the Kawasaki out of those two bikes you have selected, but ride both before buying and decide which one you like better based on experience. There is no point you getting a bike just cos we recommend it if you find it incredibly uncomfortable & hard to handle.
Flown to 120 Airports in 44 Countries on 73 Operators. Visited 55 Countries and counting. Wanderlust is like Syphilis, once you have the itch it's too late for treatment.