If you like classic, sprited jRPGs, Atelier Iris is a must-play. Unlike other Atelier Games, this focuses more on RPG elements rather than the other installments which are more like alchemy simulations.
The latter doesn't scare you? Then you should probably check out Mana Khemia. I also recommend .hack//G.U., which is a decent ARPG and improved so much over the first four .hack RPGs. (Note that there's three games).
God of War has already been mentioned, but if you own a PS3, cancel that and get the GoW Saga edition for this console instead. It contains all five Playstation GoW games so far and it should come for a decent price.
In terms of jRPG, I'm also surprised no one mentioned Final Fantasy XII. It's a tad bit lacking story-wise, but in terms of RPG elements, it is so much more free and grand than X. (just saw you already played that)