Nathan,
Do you guys site read at home or have a piano to figure the tunes out? I want to start singing them right away with my family but won't know what tunes to use.
Can you look up the tunes online? I would imagine that the name of the tune (e.g. "Finlandia") is on each page; at that point it's just a Google search away.
Some time in August Crown and Covenant has said they will have the tunes up on Psalter.org. Psalms from The Book of Psalms for Singing. Crown & Covenant Publications. much like they do for the Book of Psalms for Singing.