Christianity is perhaps the only religion that addresses the nature of sin, but because it goes hand-in-hand with redemption, it's pretty difficult to get away from talking about damnation when discussing salvation.
If you're trying your hand at apologetics, try listening to guys like Ravi Zacharias or some of his itinerant speakers (I was always fond of Michael Ramsden), or R.C. Sproul, just to name a few.