Pretty much everything mentioned previously for me too, with the exception of NCIS. It isn't that I don't like it but I have so much other stuff to watch something has to take a back seat.
Talking about good shows that have been canceled, the most recent one for me is Terranova.
So for me, SOA, Justified, Walking Dead, Hell On Wheels, Fringe, Person of Interest, Castle, Sanctuary, Alcatraz, Blue Bloods, Flying Wild Alaska, Gold Rush, American Chopper, Top Shot, One man Army (hope it comes back), Man Woman Wild. Probably some others that I don't recall right now.