A CD you might consider is a compliation called "Thousands are Sailing", which has many of the songs already listed.

Two songs that I particularly enjoy that I didn't see mentioned:

"Kilkenny" -- Robbie O'Connell and Mick Moloney had a nice version on an album of the same name
"Leaving Nancy" -- written by Eric Bogle about leaving his mother in Scotland

Good luck.

Peter