Recent posts on the use of the Psalms in the NT -
BBB on Romans 3:4 (Psalm 51:4)
and on Hebrews 2:7 - see also this (Psalm 8:5)
Psalm 93 and Mark 4:35-41 here
Psalm 8:6(5) continuing here
Psalm 95 in Hebrews (see Bibliography)
I must follow these up and collect thoughts as they happen - I think this is not a short term project.
There is a book at the UVIC library on Greek words and Hebrew Meanings - I am not quite up to it yet but I think it will contribute to the next year's work.