Can I ask why you preferred Golden to P3P? I did the same, but for me it was because the murder mystery element was more appealing, and the dungeons weren't as long winded as Tartarus was.
Definitely get Oath in Felghana
Have you played any other FF's besides 7 and 8? Either way, if you liked those FF games, chance are you'll like the other's. FF9 is really good. It's a bit more strategic than 7 and 8 since party members can't be clones of each other and have their own fixed roles, so who you have makes a big difference (You'll have 4 party members instead of 3 though). I like the way you learn abilities (off your equipment). The music is very good. Not quite as good as 8, but better than 7. It has the best Chocobo sidequests in the series. Characters are more charming and the game has a classic fantasy feel that 7 and 8 lack. Main gripe is that the battles are a bit slow, even on the fastest settings and you can spend ages waiting for your character to take action after selecting what to do. Give the game a try, and if you like it get FF4 on PSP because there's no way you won't like it. I'd want to recommend FF5 and 6 as well, but the PS1 versions have very bad loading times. They're still magnificent games though if you can deal with that (I did the first time I played them). FF6 is my second favourite in the series after 7
I bounce around between my UK and US account, so I'm not 100% sure on what is available. I believe Grandia is, and I really liked that. More light hearted than most RPG's and it feels like an adventure. The battle system is awesome stuff. While I loved Vagrant Story back in the day, I wouldn't recommend it anymore. The controls are horribly dated and it felt a chore to play so I'd avoid that.