The hottest women’s downhill mountain bikes anywhere

The best women's mountain bikes are ones that are well designed, comfortable and made of quality parts. While it is not necessary to buy a women's mountain bike (my girlfriend rides the same bike I do) it can be a better fit or possibly a stylish design that isn't available in men's bikes.
 
Here's a link for women's mountain bikes that are at a higher price range. 

Also check out this good article on Livestrong that examines the differences between casual, trail riding and racing.

About.com discusses if you really need a women's mountain bike. 

Just remember to take your time shopping around and find a bike you really like and have fun biking!