Financing depends on you, your finances and your loan officer.
the monthly payments would vary accordingly.
What is your situation? how much were you looking to put down 3%, 5%, 10% etc? Based on your down payment you could figure the monthly costs.
There are good mortgage calculation programs available if you google them.
Also it would be wise to have the following on your side
2) Buyers agent
1) Loan officer to help you get pre approved.
Notice who I put as #1