the only player i'd maybe take a chance on is Heap. to my knowledge, Daniels should be good to go. if you have room on your roster, it may not hurt to pick up Heap and then wait for injury reports next week to make your decision.
I really don't have room, with Vikings playing Saints week one I had to pick up another defense so I don't really want to pick up a TE on the WW. Also I have Flaaco which puts Heap down a notch. I think I might just stay with Daniels, thanks.