Hmm, well, as my signature shows I'm a pretty big fan of AFI.
They are a Bit Gothic Rock/Emo as their latest (2003) Album shows...Which is not my personal favourite...If you want to give them a listen, you can go to www.afireinside.net.
Album Suggestions (in this order): Black Sails in the Sunset, The Art Of Drowning, All Hallows E.P, Shut your mouth and open your eyes, Very Proud of Ya, Answer That and Stay Fashionable, Sing the Sorrow (2003)
Give them a look, they are a very respected band.
Also, Alexisonfire are super.