Oh boy..
Your LO or broker should be able to give you an idea of what you need to bring to closing.
Depending on what state you live in you will potentially have to pay property taxes at closing.
For example, here in Michigan we pay summer taxes for Jan-June and we pay ahead. So the seller in my situation paid $3800 already in January...since we are closing in April I need to reimburse him for May, ans June because he pre paid. I also need to prepay my taxes for 2014 if that makes sense. But that's just here, other states have different rules for property taxes.
Also, there are title fees, lender fees etc.
It really is important to get with your LO or broker and tell them what property your looking at and they can give you a rough idea of what to have for closing.