Hi! I'm a big Type O Negative fan and they are typically known as "goth." Depending on which cd of theirs you get, the "metal" part is somewhat subjective (at least to me). Bloody Kisses and earlier tend to be more towards the "mosh pit" way of thinking, whereas October Rust and the latest, World Coming Down, are more thoughtful but definitely still on the moody, melancholy side with a good dose of power thrown in for good measure.
I originally saw TON open up for Queensyrche and after my initial eyebrow raising have since followed them faithfully! Just saw them finish up the Road Rage tour last week. Definitely a super band, if you're into that sort of thing! And definitely a good band to start with in experimenting with "goth"....
Rogue
http://RogueCreations.tripod.com