Being only 18, I don't have many, but I do have a few.
1999 Fiesta Bowl - I was only 8 years old, but that night will forever stick out in my mind. I was running through the house yelling, "Tennessee Won!!!!!!!!!! Tennessee Won!!!!!!!!"
2001 Citrus Bowl - Beating the crap out of Michigan after missing out on Miami and the Rose Bowl was a nice little consolation prize. I remember Witten had a good game that day.
2004 Cotton Bowl - I had never seen Tennessee win a Cotton Bowl up until that point. I was excited for this game. Seeing us blow out Texas A&M was awesome. After the game, I thought, "We're gonna be the 2005 National Champions, with our recruiting class and our returning players." How wrong I was.