... You know what I hate, when people talk about great PSN games, and leave out Noby Noby Boy, I mean, what the *BEEP* seriously ?! It's the most random game you'll ever play, since it has ABSOLUTELY no point to it... lol.
For another PSN game, I'd say Fat Princess, since it's pretty addictive once you get into it.
Hmm... it's not really easy when we don't know what genre you're into, but if you like Action RPG's, I'd suggest finding a copy of Folklore, it's actually REALLY great, with a unique art style, but it maintains a deep and interesting story, and the main characters aren't your everyday RPG heroes, lol.
If you like online shooters, then one that many people tend to ignore is Socom: Confrontation, it's 100% online, and VERY strategic, although the only problem some people care about, is the graphics, as they aren't exactly "wow" worthy, but once you're playing, you really won't care anyways.
If you like Racing games, I guess I don't have to remind you abour Gran Turismo 5, although it isn't out yet, it might be worth buying Prologue to keep you happy until then, since it's dirt cheap now, although the big install is really devastating if you ask me, but meh, it's definitely worth it.







