If Gox fixes their BTC withdrawals problem before they fix their fiat withdrawal problems, the price there will go vertical, but I doubt you would be able to get your money there to trade before this happens. Even if it does, your fiat profits would be trapped for however long it takes to get it out, possibly forever.

Try to get your money to whichever exchange will let you buy before this transaction malleability problem gets fixed. I'm guessing you don't have much time.