Decision struggles

Struggles. Over the past 2 week I have been struggling with a decision that I must make soon or atleast within the next year. After ignoring my son who was throwing a tantrum, I mean reading a local newspaper, I came across an article stating that the city we live in is going to be creating a new position for next year. Everything they listed in regards to the positions are things that I have experience in, its working for the city, its great benefits and great hours. The location of the office is in the back of our subdivision and one block away from where my son will be in PreK. My dilemma is that even though I understand that Preston will be starting Prek next year I wasn't expecting to want to go back to work this soon and Im not sure if Im making the right decision. If I do go back to work then Preston will spend half of the day in Prek and the other half in daycare, so instead of picking him up after Prek he will stay a few more hours. I wasn't even planning on looking for a job until a year from now but sometimes you cant let an opportunity pass you. I have my resume ready so its just a matter of getting it to the right person and making that step. Some days I'm ready to take the step and other days I want to hold on to my son forever and never let him go and stay with him here at our house and forget school and work and OK after reading my thoughts I know that I cant do that and its not feasible. I have started a list of pros and cons of going back to work:

Pros
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1) I will have a position close to my son, home and wont need to look for a job a year from now.
2) Financially we will be able to do things we have always wanted to such as go on the Disney Cruise and replace the ugly flooring in the kitchen.
3) My son will be better prepared for school because he will be comfortable being away from us during the day.


Cons
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1) My son will cry until he gets used to it
2) I will cry until I get used to it
3) I always knew that this day would come where he would need to have some independence away from us and go off to school and I would need to let him go even if it is just to school, but it just plain sucks that even if its in a few months, a year or 2 years from now its going to be hard.