These are probably the best point n' click adventure games.
Broken Sword: Shadow of the Templars - The Director's Cut
Nancy Drew: The White Wolf of Icicle Creek
Zack & Wiki: Quest For Barbaros' Treasure
Strongbad's Cool Game For Attractive People (WiiWare 5 episodes)
Secret Files: Tunguska (not sure about this but it seemed ok on PC)