I'm just assuming that you live in the USA here.
I want to say first that I HATE Walmart, but they might be the best place for you to get your new camera from.
They have the K100D (not the Super, but they're pretty much the same camera less the sensor cleaner and electronics for the new motor drive lens) for $598.84, and include a flash
here's the link.
I would imagine that they'll let you buy it on a Walmart card, and might even give you a few months to pay for it as well.