If it is the 1650, this Bible (ISBN: 0907861466) has the 1650 Psalter in the back. 2 in 1.Just to clarify -- are you referring to the Scottish Metrical Psalter of 1650?
The Scottish Psalmody (1992) is the best split-leaf I've seen yet. The music of it is superb. There is a particularly good selection of minor key tunes that are appropriate for the numerous plaintive or penitential passages found in the Psalter.