Hi Hawk,
In the youth group that I am allowed to minister in, as part of the youth/young adult P&W group, we have the following songs in rotation for what we do (these are the ones off the top of my head)
Praise:
Trading My Sorrows
Happy Song
Beautiful One
Friend of God
Who is Like the Lord (not the Israel one, but older.)
Can't Stop Praising His Name (Jesus) by Ron Kenoly - Sounds great when you use a lot of double bass drum

Heart of Worship (the Chris Daughtery version)
The Noise We Make
God of Wonders
Show Me Your Glory
You're Worthy of my Praise (Jeremy Camp version)
Lord I Lift Your Name on High (We always set it to Lynyrd Skynyrd's "Sweet Home Alabama", as it's the same chords for both songs)
Worship:
Breathe
Shout to the Lord
Better is One Day
Without You (by Poor Man's Riches)
Strong Tower
Holy of Holies (we typically do the orig. version as opposed to the Kutless version)
Faith Like That (by Jonah 33)
Potters Hands
Take My Life (Holiness)
Hungry (Falling on My Knees)
Freedom
Working on:
How Long (Spoken)
Further (Pillar)
I'm missing about 20 songs, mostly worship. I just can't think of the names of the songs at the moment. Most songs are done in some sort of rock/hard rock way.