So, I bit the bullet and called my current lender to see what was involved. Told them I only wanted to see about lowering the interest rate/monthly payment with no cash out. And preferably not change the pay-off date (been in the house for 4 years next month).
They said that I could either pay the closing costs out of pocket or roll them into the loan. But they could switch me from an FHA loan to a conventional loan and get rid of my MIP (mortgage insurance premium) of about $80 a month on top of the lower interest rate cost savings. She calculated I should save about $130 a month total. She said I picked a good day to call & lock in; rates changed 3 times yesterday and they were higher than today.
Haven't decided yet if I'll pay the extra towards principle or put it on my snowball to pay off other things first. Kinda leaning towards snowball.
Sounds like a pretty good deal, take the closing costs into consideration. Paying a little extra each month sure takes the principle down.