hand 1: i like c/c the turn more, for reasons already posted.
hand 2: i think you should fold. if he isn't paying attention, then the check-raise is for value and he wants you to call, because he just hit some straight, set, or 2 pair. if he IS paying attention, then he would likely put you on tilt, and has no reason to CR when he could keep letting you bluff all your chips away, and perhaps do a blocking bet on the river.

(oy, hand 2 is so much easier to play in limit...3bet damn it!!!)