+1 to what all the above TE members wrote.

Also, since you are 5ft7inch, men's bikes might be good options for you too. Sounds like you are going to have lots of bike options.

Also, you might want to find out when your favorite bike store will be having their big yearly bike sale.
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2012 Specialized Amira Elite, upgraded carbon handle bars, Jett saddle 143mm switched to 145mm 2012 Selle Italia Max SLR Gel Flow saddle

2011 Specialized Ariel Sport,suspension post,Serfas Rx Women's Microfiber saddle