NPC009 said:
I'm pretty fond of the weirdass things Sting made, like Riviera, Gungnir, Knigths in the Nightmare and (less weird) Hexyz Force.
If you love Final Fantasy Tactics, you need to play Tactics Ogre: Let Us Cling Together. FFT inherited most of its good stuff from that game.
I second all of this, pretty good choices.
If you are looking for more SRPGs, if you haven't played the Disgaea games they're available for it and they are fantastic, see also Jeanne D'Arc, pretty damned good SRPG by Level 5 (Known for the tales of games).
Other good choices are the Persona 1, 2 & 3 ports for it, won't regret it if you like JRPGs.
And if you love weird Japanese games get Gitaroo Man Lives, it's just a port of Gitaroo Man for the PSP but it's a good and extremely bizarre Japanese rhythm game.
I would also recommend Castlevania Dracula X Chronicles, though do keep in mind that I'm a huge Castlevania fanboy, that being said it does also include the game of which it's a remake of Rondo of Blood translated to English for the first time and Symphony of the night and it's at the very least worth it for SotN alone.