If you're going to go this route, buy high-yielding oil trusts on the pullbacks to the 50-day moving average, and use the divvies to buy either juniors or more trust units.

If you are good at shuffling the debts about, you should be able to maintain very low rates, pay down the cards over time, and beat the yield of the card companies. That's if you think the dividend will remain above the amount you pay the banksters.

I don't necessarily recommend this, but it seems more prudent than loading up a card with shares of Tyhee. The dividends could be used for multiple puposes, including paying the card debt if need be. It gives you the luxury of waiting, without feeling like you need a result within 2-3 months. Over time that interest will pile up if you're wrong and/or can't pay it back quickly. You'll get fewer shares, but you will dollar cost average across several investments too.