A lot of them have already been mentioned:
Georgetown and Syracuse in 1990.
Gampel opener over St. John's in 1990 (Dan Cyrulik must have a copy of this one somewhere).
Beating Stamford on the road in 1999 without Rip.
El-Amin at Pitt.
The whole Maui Classic in 2010.
A couple I didn't see.
Blowing out North Carolina at Gampel. Maybe not a great game, but amazing for someone who as a kid rooted for a Yankee Conference team.
The win at Texas in 2011, complete with Roscoe's first heave.
One that sticks out to me, as a 1987 grad was the last game of the regular season. Gamble and Robinson had been gone since January due to academics, and even WITH them we had lost to Yale and Hartford on route to 9-19 overall. In the last game of the regular season, we played a Seton Hall team that had all the key players except Andrew Gaze that came within one point of a title in 1989. Steve Pikiell and Greg Economou cracked heads in the first half, leaving a lineup the rest of the way of Tate George, Gerry Besselink, Jeff King, Spider Ursery and James Spradling, except for a minute when Spradling had to leave when he got cut, sending soccer goalie Brian Hall into the game. Somehow the Huskies gutted out on their and Calhoun's toughness. It was a great game to attend it was confirmation that once Calhoun got some players that good things would be happening.
Honorable mention for comedic value: Leading BC by three in the final second and letting BC get a uncontested layup at the buzzer to lose by one.