I ride a Blue Competition Cycles RC4. It is a unisex bike, but the XS size has the same top tube length as the Ruby 48 that everyone your size seems to be recommending, plus it is a compact geometry, so the standover shouldn't be an issue at all. You might want to try one out. I absolutely adore mine... It rides amazingly and is sooooo beautiful and distinctive. It's full carbon tubes with aluminum lugs. Frameset is 3.5 pounds. It is an awesome bike. I had mine put together with a 105 groupset except I did get the Ultegra short-reach levers. I bought the frameset on Ebay and put on the components that I knew I wanted. That way was much less expensive than a brand new factory-spec'd bike.
Check out
http://www.rideblue.com/rc4.html and also
http://www.rideblue.jp/product/rc4.html
That second site is in Japanese, but it has better pictures and geometry charts.
Blues are hard to find, but worth a long drive if necessary to try one out.