2000 vs FL. I turned 21 that year. It was a long time ago so I don't really remember much about it but I'll never forget it for a few reasons.
The only thing I remember about being there was how it was so loud I couldn't even hear myself yelling. It was the 1st and only game I've ever been to... My aunt's husband at the time let us use his tickets so I could go with my dad, who went there and was a huge fan (and is why I am a fan), but he was too sick to make it. He had pancreatic cancer and died that December.
That's part of why I've lived in GA since 1994 and have never become a GA fan. Even though I don't remember much about it (and that we lost the game), it was one of the best experiences of my life and one I'll never forget.