This was posted over at ncaastrategies, not sure how accurate it is, but it's probably a good start. I was thinking of starting a dynasty with them as well.
FG is Successful - Band: "Utah Man"
PAT - Band: "Utah Man"
2 Pt Conversion - Band: "Utah Man"
Touchdown - Band: "Utah Man"
Safety - Band: "Utah Man"
Defense on 3rd Down - Chant: "De" ... "Fense!"
Defense on 4th Down - Chant: "De" ... "Fense!"
Kickoff - Band: "Kickoff Fanfare" OR "Crank Dat (Superman)" by Souljah Boy
Timeout Home - Band: "Hey, Baby" by Bruce Chanel
Timeout Visitor - Band: "Hey, Baby" by Bruce Chanel
TFL/Sack - Band: "Vader Defense"
Defensive Stop on 3rd down - Band: "Vader Defense"
Defensive Stop on 4th down - Band: "Vader Defense"
Turnover - Band: "Utah Man"
Defense takes field after Kick Return -
3rd Down Conversion is Successful -
4th Down Conversion is Successful -
1st Down Conversion on 1st or 2nd Down -
FG Miss by Opponent -
Challenged Play -
Start of 4th Quarter - Band: "Can't Turn You Loose"
Penalty on Away Team -
Other Often Played Sounds - Band: "U Pep" ; Band: "U of Utah"
Here's a link to a variety of mp3's by the Ute Marching Band:
http://www.utefans.net/audio/audio.html