Basically, last week I bought an NTSC PSX off my cousin (he recently bought an NSTC PS2).  I've decided to track down and play many of the classic Playstation games that were never released in Europe and therefore are only recently available to me.

Yesterday, I got Tales of Destiny in the post and today both Xenogears and Chrono Cross arrived.  I also want to get Tales of Eternia and Tactics Ogre.  I was wondering if anyone could recommend any more

Feel free to recommend games that were also released in Europe, my PSX collection isn't quite as complete as I would like it to be, I've been meaning to get my  hands on Metal Gear Solid, Megaman Legends 1 and 2 and Vagrant Story for a while now.

Well, you have some great games already. Xenogears is my favorite RPG, period, and if you play it through you're gonna dump at least 50 hours into it, you could put even more into Chrono Cross. So you have quite a lot of play time in just those two. I'm not sure what NTSC games didn't make it to the PAL regions, but just a general list of recommended PS1 games would be.

Xenogears
Metal Gear Solid
Parasite Eve (I and II)
Bushido Blade (1 and 2)
Castlevania: Symphony of the Night
Policenauts (gonna need a language patch for this)
Tekken 3
Star Ocean 2
Wipeout 3
Vagrant Story
Final Fantasy (VII, VIII, IX, Tactics, etc)
Resident Evil 1, 2, 3
Einhander

That's all I can think of of the top of my head.