game soundtracks help

I am wondering if its still possible to get these following game soundtracks at a good price:

Grandia 1 OST 1
Grandia 1 OST 2
Secret of Mana OST

Also would like to know if these 2 soundtracks are worth getting:
Radiatia Stories
Shining Force Neo

Finally if someone has a suggestion for a good rpg music sountrakc I'd appreciate it, also if someone knows if there is a extended version to these songs i'd love to hear it:

Grandia 2 Grana Saber(its where everyone is singining and helping Ryudo out near the end)
Grandia 2's version of the Grandia theme

Well thats about it I rlaly hope someone can helpt me out.