Final Fantasy VII

I am seriously disapointed in FFX and FFXII, X had a great battle system but the rest of the game blows, XII has a great story and awsome characters but I can't stand it's battle system.

The one FF game I really want to play is FFVII, even though I hate Sephiroth to the very core of my being, I'm a devoted Kefka fanboy.

Does anyone know a reliable source to order/buy it from?

I don't trust ebay or any other auction site.

Ok enough about the PS3 we're deviated from the topic.

Whats a reliable source I can get a very old and out of date game, Final Fantasy 7, which I didn't have the brains to buy when it was everywhere.