Most people love a bargain; investors do too. Purchasing shares of companies that can perform well over long periods is already pretty exciting, but it's even more so when they can be scooped up from the discount bin. And there's no need to wait for a major stock-market meltdown to do that.Stocks facing company-specific issues for which the market has punished them -- but from which they can recover -- offer attractive bargain opportunities. Here are two great examples to consider: Merck (MRK 0.45%) and Bri ...