Then I'm not exactly sure what is predestined. If God does not interfere at all with our free choices, then what is left for Him to affect via His foreknowledge? Do you mean that God sees whether or not we choose Him and then decides to make those people the elect?
God sees us as either acceptable or unacceptable to Him (remember Job?). We are either righteous in His eyes or we are not. Yes, we decide our choices. We can be virtuous or not. We can jump on God's train and stay on it, and let God take us to His destination, or we can give in to evil and be lost.
PS Those who are dead in sin need not apply (because there aren't any).