I recommend listening to either Three Cheers for Sweet Revenge or The Black Parade. Both are excellent albums that really helped me through when my grandmother died. http://www.youtube.com/watch?v=KSNKCfxcYvE
I'm sorry for your loss, you have my support!
If you ever need someone to talk to, I'm up for it. I can't exactly relate to you, but I'm a good listener.