Hi Katie, welcome!!
Here's a great resource for beginner bikers, and it's all totally free info!:
http://bicycling.about.com/od/beginn...eginnerhub.htm
Also start reading the past threads on this forum, which will give you LOTS of excellent info specifically from a women's angle.
Get ready to have more fun that you even imagined! Don't be afraid at all- every day you'll gain a bit more experience and knowledge.![]()
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(and aside from the obvious of getting a knowledgeable bike person to help you with your bike purchase, the more YOU learn before you buy your first bike, and the more bikes you test ride, the better your chances of choosing one that will suit you well!)