should I refinance my mortgage from 30 years to 15 years?my current mortgage is 30 years with 4.65%, should I refinance to 15 years with 3.75%? the cost is $2500October 06 2010 - US00YesReport a ProblemProblemSelect oneOffensive contentIrrelevant contentSpam (pure self-promotion)OtherDetailsYour emailPlease enter a valid email address.Submit CancelContent flaggedWe will review this content. Thanks for helping make the site more useful to everyone. To learn more, read Zillow's Good Neighbor Policy.We're sorry. This service is temporarily unavailable. Please come back later and try again.