Tom,
What you have described here is what is known as the"positive-positive" view of predestination.That is, God positively and actively intervenes in the lives of the elect to bring them to salvation.In the same way God positively and actively intervenes in the life of the reprobate to bring him to sin.This distortion of "positive-positive" predestination clearly makes God the author of sin which is an assault on God's integrity and His word.
If you have not already done so I suggest reading R.C. Sproul's article on "Double Predestination".It is archived here.A summary of what Dr. Sproul has to say is found in his examination of Emil Brunner's position on predestination.Speaking of Brunner,he says;(1)there is a divine decree of election that is eternal;(2)that divine decree is particular in scope (There are those who are not elect);(3)yet there is no decree of reprobation. Consider the implications.If God has predestined some but not all to election, does it not follow by what Luther called a "resistless logic" that some are not predestined to election? If, as Brunner maintaines,all salvation is based upon the eternal election of God and not all men are elect from eternity,does that not mean that from eternity there are non-elect who most certainly will not be saved? Has not God chosen from eternity not to elect some people?If so, then we have an eternal choice of non-election which we call reprobation.The inference is clear and necessary yet some shrink from drawing it.

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