Woman's road bike?

I am five inches tall, I would like to buy a woman's road bike, that has a lighter aluminum frame with mid-range components that keep performing after miles of use. I am looking for around $500 - $800 range 1) What is a good brand that you recommend, with a drop down bar (tube) in the front, for easy get... show more I am five inches tall, I would like to buy a woman's road bike, that has a lighter aluminum frame with mid-range components that keep performing after miles of use. I am looking for around $500 - $800 range

1) What is a good brand that you recommend, with a drop down bar (tube) in the front, for easy get on/off

2) What is the right frame size that I should buy? (48 inches?)

3) When buying a bicycle, what other factors to look for?

Thanks
Update: I am 5 ft tall, not 5 inches tall
Update 2: I am 5 ft tall, not 5 inches tall
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