My friend Mark was using the Opeth logo as his avatar on one of the forums I frequent, and I found it quite intriguing. So I looked into the band a little. I also asked Mark about them and he soon sent me "The Moor", and at first listen I wasn't quite into it. But even then the contrast in vocals stood out to me. I wasn't in a metal mood at the time. I was listening to a lot of Hindustani classical music, so that should give you an idea where my head was.
About a month later I found a couple of their albums as mp3's on the network at work. I went back and listened to "The Moor" again and this time I was blown away. It's still my favorite Opeth track. I went out and bought Still Life a week later and I was immediately hooked. I think it's their best album too. Lamentations being my second purchase, over the course of two months I ended up buying their entire catalogue. That's rare because I'm really picky with what music I spend money on.
Mark also introduced me to Nevermore and Carcass, two more of my favorite metal bands. At the time I was listening to Slayer, In Flames, Dark Tranquillity, At The Gates, stuff like that. Still love those bands too.