i find a good way to get his best stuff from before he gave up is searching freedomainpodcasts.com for keywords. 'race' "iq" "communism" "crime" and especially 'the truth about' will give you many great presentations.  i really liked one show in particular about marx. the truth about marx. all he does is use a chapter from a book called 'intellectuals' by someone i cant recall, but hes so good at presenting it and his voice is so nice that it all works together to make it wonderfully listenable/
Canada