I have 2:
I remember staying up until 2 AM as a youngin sneakin in to the TV room and I woke up my family after Horry missed that shot. An unbelieveable comeback leading to a wide open shot by the guy who never misses them. I was already celebrating once he shot it and couldnt believe it fell out.
This game was just awesome. Seeing KG finally have some success after all the down years was great. He really wanted to prove to all the doubters he could show up in the big moment, and in his biggest moment he had one of the biggest game 7s ever