CJ.. let me make it clear for you....when one takes out a 30yr fixed mortgage, one pays same amount of interest RATE.... not necessarily the same amount of interest.
Heres why... lets say I borrowed $100,000 at 5%. The interest for the year will be $5,000.
Now lets say after 20 years into the loan, I owe $50,000, with the same RATE of 5%, the interest for the year will be $2,500 simply because I owe less, therefore the interest amount will be less.
So, one only pays more interest amount at the begining of the loan because you owe a larger amount and the interest is on that amount. I dont recommend paying biweekly because most likely it will negatively affect your liquidity and it is the same a making one extra payment a year.. so do that instead... this of course if you have no other debt, car, credit card, and have at least 6 months of emergency money saved.
Your LO can easily tell you how long it will take to recoup money spent on points... ask them,