A Big City Move?

I was born and raised in Lakeland, Florida.  Lived here for 18 years and then off to college I went, in Johnson City, Tennessee.  Neither of which are big cities by any means.  When I moved back to Lakeland in 2013, I believed this is where I would stay for a good long while.  Then I went to grad school and found out how little jobs there were here for me and how little money is made in my field here.
So this got me thinking, should I move to a bigger city?  Yes I know money is not everything, but I do have to make a living and I will have plenty of student loans to pay back soon.  So money is kinda of important to me.
While in Atlanta, I started asking myself if I could live there or not.  It is about the only BIG city I could see myself in and have always loved it there.  I would definitely have more job opportunities and there is a pay difference in the big cities (and out of Florida).  But could I really ever make the move?
I decided the only way I could really even begin to make a decision about this is to make a pro's and con's list.  Here is what I have so far:
Pro's: More jobs Higher pay You can walk and take trains everywhere (which I love the idea of not driving all the time) Always something going on in cities There are actual seasons outside of Florida ( not just hot, hotter, and sweat your makeup off hot) I love changing my surroundings It would be an adventure
Con's I would be away from my family (8 hours if in Atlanta) Higher crime in bigger cities Higher living expenses (comes with the higher pay) I hate crowds and cities seem to always be crowded I would not know hardly anyone
My family is probably reading this wondering where in the world it is coming from.  Little do they know this has been on my mind for quite some time.  Do I think it will actually happen?  I don't know.  Lots and lots of praying will have to be done to see if this is in the plans.  
Have you ever made a big move?  Do you live in a big city? Share your thoughts and help a girl out!