I just want to flag up a brilliant website for all those that lead sung worship in church or CU, write lyrics, in a worship band or love sung worship in church. This website was created by Olly Knight who was a staff worker with UCCF and he regularly leads sung worship at UCCF Forum and his Newfrontiers church in Canterbury.
Check out his website here: http://www.worshipjesus.co.uk
And the resource page is brilliant with lots on the theology of worship, how to write lyrics and how to lead worship.
I really love singing the songs he writes because they are very trinitarian and soaked in the Gospel! This is worth checking out.
Here is a video with more info: