Hi - Take a look in the BACK pages of hymnals from most of the mainstream churches, and look for the sources of hymns. The older the hymnal, the better. You can find some real gems in the Methodist and Episcopalian and Lutheran hymnals.
One favorite of mine that was discussed in another thread is "I Heard the Voice of Jesus Say," which has the same tune as "Star of County Down." I made lots of points with our Irish-born priest last Sunday by singing that. Maybe now would be a good time to hit him up for more money to buy music...
-Joe Offer-