Or you could just buy an EVGA card and use their Step Up program. That's what I'm currently doing.
EVGA's Step Up program only applies to approved EVGA cards (reference-only and in-stock) that have been purchased WITHIN THE LAST THREE MONTHS.
Basically this is for people who realized that they made a mistake.
You also have to upgrade to a BETTER GPU. Not only that, you have to give them your card to test before they will send you the upgraded card.
If you had the foresight to be aware of this program you likely wouldn't need to use it.