Wet floor when A/C running

A/C is pretty cool, but not as cold as I think it should be, and takes a while to cool the car, particularly for those in the back seat.
After driving about seventy miles with the A/C on, it began leaking from the blower motor resistor.
Any ideas on what the problem is or where the leak could be remedied? This only happens when A/C is running. There is also a small drip from the drain hole under the hood (my understanding is that this is where it should be leaking/dripping).