You're too much, Grant.
Anyhoo, yes, Rogaine and Propecia can and do work for frontal thinning and loss. However, both are more effective on the crown (vertex) of the scalp.
If you were to add Nizoral Shampoo (available at most supermarkets and pharmacies) to your current regimen, you would be on the "big three," which is essentially the gold standard of hairloss treatments. Most of the successful users on this site use this regimen; it consists of Finasteride (active ingredient in Propecia) Minoxidil (Rogaine's active ingredient) and Nizoral Shampoo on mon, wends, fri, or at your discresion.
That being said, frontal loss is the hardest to treat, so be patient and good luck. Is you hairline receding or is there just overall thinning?