You should definitely check out Jurassic 5. These guys kick ass and have great old-school production to their stuff.
As far as some hip hop influenced jazz music, check out DJ Spooky's Optometry on Thirsty Ear records. In the last year or so, they have put out many great modern jazz records that are very cool and accessible.
If you are into hardcore/heavy metal music, check out the bands Yakuza and Candiria, as both of them are really noticabley influenced by jazz. (Yakuza has sax lines through it over heavy chugging breakdowns and it works well).