Gonna go ahead and recommend Suikoden 3 here, while you may want to find out what the best order is to play it's story (since you play as 4 different people) it's story can be kinda messy on the first play through.
I will also throw out Star Ocean: Till the end of time. I remember it being pretty decent, albeit I was a bit younger when I first played it and haven't gotten around to replaying it like I've been meaning too.
And last but not least I'll toss in ALL the .Hack games and the OVA (I think that's what it's called?) the GU games play and look much better than the first set of 4, but I'm not sure how well you'll understand the story without the original 4 to help make you understand everything that's going on in the latter 3 games
TLDR: Suikoden 3, Star Ocean: Till the end of time, and ALL 7 .Hack games (Infection, Mutation, Outbreak and Quarantine. Followed by the 3 GU games, Rebirth, Reminisce and Redemption)
[small] Crap that's a lot of names to remember [/small]