Atlantis: Evolution - See ***my review***
Paradise - buggy, shifting hotspots, hard-to-find screen exits, depressing story, detailed graphics but murky coloration, patch is said to improve gameplay, but makes the game completely unplayable for some (as in it won't start anymore)
Still Life - excellent game, but uses StarForce, an invasive anticopy software that some people would rather avoid. I played the game on an XBox and thought it was great, so if you don't mind the StarForce....
Shadow of Destiny - Interesting concept. I played it on PS2. Your character must die over and over again for you to learn how to avoid the deaths and progress in the game. If you don't mind a game that isn't strictly what most people think of as an adventure game, it's a good choice.