I don’t think that I have seen any discussion of Gary Katz’s article on modifying the stock blade guard of his Bosch 4000 table saw to fabricate a riving knife. Take a look at <http://www.garymkatz.com/Tool%20Reviews/RivingKnife.htm>.
Between this, the great stand, and the drop in router table somebody posted about I really want one of these saws. Too bad I have bills to pay.