Ladies Bikes - What are you riding?

Not sure if this is place to post this but I'm after some recommendations for my girlf who is struggling to find the right bike to ride in London. Her approximate requirements:

• modern componentry, no old brakes and quill stems please.
  
• light weight, no Pashleys (got her one and it was totally unsuitable for Muswell Hill and for actually getting anywhere).
  
• not a racer, more of a sit-up-and-beg bike a la Dutch style (makes her feel safe inbetween cars) but not a out-and-out cruiser.
  
• more than 3 gears.
  
  

Budget is £500, but really I can take any reommendtions as getting the right bike is proving tough. Maybe I just know too little about women's biking needs?

[worriesifheknowsaboutwomenfullstop/]