Has anyone said Baldur's Gate or Baldur's Gate 2: Shadows of Amn?
Other great games:
Need for Speed: Porsche Unleashed, System Shock 2, Dungeon Keeper 2, Diablo and Diablo II (still fun to play tcp/ip with friends). RollerCoaster Tycoon 1 & 2. The Settlers II - 10th Anniversary.