Rynx214: welcome to the mud-pit!
There is nothing more absolutely certain than that GOd exists. Here is my proof, the most basic of proofs:
"If something must be true for us, as humans, to exist, then it must be true because we exist."
strong words. interestingly, i cannot see the word of "god" anyhere in your descartes quote. to my knowledge, philosophy has since moved away from concepts such as "absolute" or "objective" truths. your "proof" proves nothing. even if there is a truth independent of the human mind, what does "god" have to do with it? to simply say: "we are, therefore god exists" would be just one more example of a logical fallacy, like there have been so many before.
As for the order vs. chaos bit, there has never been an example of chaos turning into order on its own,
bear in mind that the popularized notion of chaos is not congruent with the physical or mathematical definition. physically, the singularity at the beginning of the cosmos was the ultimate state of order. thermodynamically, entropy gives direction to the arrow of time. cosmologically, evolution is fueled by entropic processes (e.g. nuclear fusion in the sun). therefore, "order", as developed during evolution, is consistent with cosmological "decay", or energy conversion to heat. which is not something creationists are usually intellectually able to acknowledge.
It's like saying the inside of a watermelon is blue before a you cut into it: you are dodging the burden of proof by stating that the proof for your theory, by definition, can never be observed by a human being.
talk about the pot calling the kettle black! god is the ultimate watermelon!