RockStar accouncement for GTA IV on the PS3:
There will be 51 total trophies, broken down by four different levels: bronze, silver, gold and platinum - all contributing to your overall experience level on your PlayStation Network profile.
Among the 51 trophies to be released Monday, look for (see image).
Look for detailed information on all 51 trophies to be revealed at www.rockstargames.com/IV this Monday when the Playstation Network update goes live.