Covenant Worldwide has free downloads, The Theology Program is also online for free but I doubt it's Reformed and then you have Biblical Training. I noticed NARS uses courses and outlines from TTP and BT.

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Conscience may lash us, but it cannot replenish a languishing life. Conscience may be God's word and minister to you, telling you of your faults and your follies and your destitution. It may point out, but it will never supply you. Christ must give you new life. Hart has well expressed it: "He to the feeble and the faint, His mighty aid makes known; and when their languid life is spent, supplies it with His own." - J. K. Popham