I've always liked the ones Unity Churches have done. I couldn't find a listing for just one hymnal for them, but I did find this Music Page which tells what they are doing, has some sound clips, which I have not listened to, yet, and, if you click on "lyric slides" on the left, there are powerpoint slides of some of the songs.

They end every service with "Let there be peace on earth" and I really love that. I also like their "I am walking in the Light."