I've haven't spent much time looking for bait in Canaveral, as I usually troll offshore with store bought ballyhoo People frequently get pogies and mullet in the port and along the beach throwing cast nets. You can also sabiki a variety of bait at the buoys, wrecks, and reefs. As you mentioned, it depends on what your targeting. I would always bring some dead bait (ballyhoo, squid, cigar minnows, sardines, etc.) regardless of what type of fishing you're doing in case you can't find any live bait.