Actualy I need this too...I've been asked (more so told...long story) to bring forth a few songs for a youth choir at another church in less than two weeks. I haven't touched a piano/keyboard in 4 years. So I'll probably be using some of these suggestions too.
Here's a few more
* God Is Good - Deitrick Haddon
* Everybody - Youth For Christ
I'm with you too on the oldies, there's nothing wrong with them at all, here's a few of those too:
* On The Battlefield - Douglas Miller
* Who's On The Lord's Side - Rev. Timothy Wright
* Joy - Rev. James Moore