New female rider- Help

[Synnergy]

I just finished the MSF rider training program and am in the market for a new bike. I want a sports style bike (not interested in cruisers AT ALL). Now having made that clear. I was leaning toward the Ninja/Suzuki somewhere in the 500 -650cc range. The problem is I am only 5'2 and would have to have it lowered a bit. I recently found a Buell that's seat height is perfect. The weight is good and they style is pleasing. The thing that worries me is that its a 1200cc bike. Its the Buell lighting XB12Scg. From what I have been told the Buell (even the 1200) isn't nearly as powerful torque wise as the Ninja or Suzuki. My main concern is being worried that the Buell is too much bike. I was wondering if anyone had any experience and could give me some advice. I am just starting out and want to be safe out there on the road. Obviously I will ride whatever bike I choose safely on back roads before getting out there with traffic. So 1200cc Buell that fits excellent or the Ninja (or something similar) 650cc that needs to be adjusted?? Thanks in advance