Suggest me some new artists/bands

try coldplay they have awesome lyrics and songs try listening to clocks or viva la vida (which i know you've musta herd tv, radio ,itunes)

Tokio Hotel - Ready Set Go

Dropping Daylight - Blame Me

Alkaline Trio - Help Me

Atreyu - Becoming The Bull

Cartel - The Fortunate

Cobra Starship - The City Is At War

Coheed And Cambria - A Favor House Atlantic

Flyleaf - Im So Sick

We The Kings - Check Yes Juliet

Sorry if some of these are to "punk-rock" for you but i like most of those bands you listed and here's some new bands i've found that aren't bad. (favorites first..)

Anberlin - (The whole 'Cities' album is amazing) but if had to choose a favorite song.. 'Inevitable' or 'Day Late Friend'

Aqualung - 'Something to Believe In'

Flyleaf - 'All Around Me'

Nine Days - 'If I Am'

Amber Pacific - 'Here We Stand'

Alkaline Trio - 'Fall Victim'

All Time Low - 'Coffee Shop Soundtrack'

Emery - 'So I Could See My Breath'

OAR - 'Love and Memories'

And the sites i included are great places to use your current favorite bands to find similar stuff that they think you'll like.

Scars on Broadway- 2 guys from System of A Down are in it.

Against Me!- They're a political band.

the Dresden Dolls- freakin' AWESOME band.

You may already like the killers but if not try them out, there amazing. if your looking for meaningful lyrics listen to Why Do I Keep Counting by them, it's on the album Sams Town, hope this helps

i've always found dashboard confessional to have meaningful lyrics, as well as john mayer (no such thing) , brand new (handcuffs) , toad the wet sprocket (walk on the ocean) counting crows (long december)