As Scott W has mentioned there is a company that lowers bikes, link added below:-

http://www.drshull.co.uk/

I'm 5'3 and ride the RVF400 but I've had this bike about 8-9 years now and at the time of looking there weren't any 600cc or above that I could fit.

Now, if I had the money I could get a GSXR 600, 750 or 1000 as they are lower, narrower and lighter and would fit it quite comfortably :

Good Luck!