Well, that sucks that you lost all your music! Some good bands I think you might like are- Silverstein, The Doors and if you like Green Day you have to hear the song "The Judges Daughter" and "Disappearing Boy", my alltime favorite songs.
From MCR - get Headfirst for Halos, Helena, Cemetery Drive, The Ghost of You, Mama, Famous Last Words :D
Plus, I suggest you check out the songs "Dance Hall Drug" by Boys Like Girls and "Cellar Door" by Escape The Fate.
Also, if you like pop-punk sorta stuff, I recommend some of Good Charlotte's older stuff like "Little Things" and "The Anthem", plus I recommend "Addicted by Simple Plan, you should check out Fall Out Boy, and you should listen to "Taste of Ink" by The Used.
Some good bands I think you might like are- Silverstein, The Doors and if you like Green Day you have to hear the song "The Judges Daughter" and "Disappearing Boy", my alltime favorite songs.
Good luck getting more music! - Bryanne