Most of his prolific recorded output is available on the Duns Limited Edition label (see http://www.mindyourownmusic.co.uk/duns-lake.htm which puts out CD-Rs of some of the best British Jazz of the past decade or so. Dunmall sounds at times like Sonny Rollins at others like Evan Parker, but arguably surpasses both in the precision and succinctness of expression. He has been described as uncompromising (for example on his own website, http://www.pauldunmall.com/), but his work is the very opposite of indulgent - this is music of the utmost seriousness and importance.
For a full bio of Paul Dunmall see http://www.efi.group.shef.ac.uk/musician/mdunmall.html.
More info at Paul Dunmall’s website - www.pauldunmall.com and MySpace page - www.myspace.com/dunmallpaul.