I'd say any debt that you may have has to get paid off as soon as possible because of the interest. Now if you have a investment opportunity that pays more then the interest, then that is something you might want to invest in.
Unless you are at least 90% some fruition is going to come out of your action, you shouldn't do it. Pay off your debts in full, then think about investing. Don't take risks on such a "thin ice" situation; tread carefully, you don't know where you might end up.
