That's exactly what I did, pay off corp CC's. My interest rates were about half yours but like you said, I too will be saving a ton by doing this. Make sure you fulfill the loan and pay it off. It will be worth its weight in gold when it comes time for you to request more capital. Banks love to loan funds to business' that repay, so the next time around you ask for cash, they just say "how much will you need this time?". With the exception of your credit file staying around the same as when you applied, of course.
