I have a feeling I saw it on Amazon cheap a while ago, and decided against it. I didn't mention Grandia II because I've never played it. I don't mention games I've got no experience of. Same with Vagrant Story. Will really have to look for that one. My first console was a PS2, so I missed loads of the PSX era games. Basically, the earlier generation games I've played because I developed a 'try to play recommended JRPGs' mentality. That's got more difficult now, as the games I've not played are either a) hard to find or b) exorbitantly expensive or c) I can't be faffed with the hassle. SO:TtEoT has some used copies on Amazon at the minute, as does Valkyrie Profile Silmeria. And you're right - you must go back and finish Shadow Hearts... and then play the sequel. The next one after that (To the New World, IIRC) has new characters and I generally found far less fun.
Missed PSX games... You sir are in dire need of a PM! I can sort you out. I shall get on the case and not WALLOFTEXT this thread further.