There's a ton of great games on the PS2. But hard to recommend anything. Try getting Rogue Galaxy though, thats a recent, cel shaded RPG that was released.
FFXII... I dont know your tastes but FF12 has a lot of mixed reviews. This is because there's no story. And when I say there's no story, I mean that there is a story but it's so poorly told, confusing, and forgettable, that there might as well not be one at all.
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I got FFXII a couple weeks ago.
I understand why people don't like it, but to say there's no story isn't fair. Yes, it didn't have a decent amount of character development, and the story wasn't as personal; but what characterisation there was was pretty good, and the storyline IS good, it's just disliked because it's more about the whole group/ nations rather than individuals, and unfortunately that was a mistake in the eyes of fans. Give me this over Suikoden V any day, but yeah, there are better games...
Still, the gameplay is pretty good, and the music is great; the only big thing I feel that lets me down with this game is that it is TOO LONG. It's amazing to be able to say that about a game; quite a feat in fact, and just shows that sometimes you should be careful about wanting games to be longer when they're already a substantial length.
I got:
Final Fantasy XII (played about 25 hours so far and barely half way through)
Fahrenheit (amazing game)
Devil May Cry 3 (alright... But not amazing)
Suikoden V (extremely disapointed, and definitely a bad introduction to the franchise. Badly executed story, bad pacing, bad characterisation and average gameplay)
Dragon Quest VIII (hoping this will be good, and have lots of good characterisation despite a silent protaganist >_<)
Metal Gear Solid 2: Substance (well, Sons of Liberty was quite possibly THE best game ever, so I finally got hold of this, and it's awesome, even if it is annoying at times and my bad condition second hand copy fucked up on codec conversations >_<)
Onimusha 3 (broken second hand copy, ugh >_>)
Shin Megami Tensei: Digital Devil Saga (sounds really cool, looking forward to it)
Beyond Good and Evil (good game, but I got distracted)
Once I've gotten through these I'll look into some more. Already interesting me are God Hand (sounds/ looks cool, heard it's good), Valkyrie Profile (looks interesting but expensive), Shadow of the Colossus (didn't like Ico so much but appreciate it as artistic, and this sounds good, but expensive), Shadow Hearts series (REALLY wanna play these, but rare as hell and so expensive), Kingdom Hearts 2 (loved KH1 when I first played it, but kind of lost interest in this and had it all spoiled already).