OP doesn't mention this, but there's a lengthy demo of vanilla Dragon's Dogma on PSN Store/XBL [it's 3600 mb].
In case you want to see if the game is up your alley before buying it.
I can't see myself disliking it, but that's probably a good idea to give the demo a shot, since no one can seem to agree on what other games it has similarties to. I've heard the game being compared to Dark Souls, Monster Hunter, Dragon Age and PSO, but each time someone would disagree, it's kind of amusing actually.