First challenge:
Had a similar problem.  The thing would only drip when the engine was running
and warmed up.  As soon as the engine was shut off the stuff would evaporate
and leave very little trace.  It was coming from the right side too.  It was
one of the two heater hoses that are on that side.  It was rotten and the
water would seep out at higher pressures.  Check these hoses and get back to
me.
2nd challenge: Belt squealing might be just belt needing tension or could be
water pump getting ready to buy the farm.  Try to move the pulley on the water
pump.  It should be tight with no side to side motion and very little (or no)
forward to back motion.  Also check the pulley on the alternator.  Could be a
bad bearing in that as well.
Ken Wilford
John 3:16