BETTER WAY: <img src="/images/graemlins/cool.gif" alt="" />
go to kilika port shop (right when you get off the airship the old lady southwest on the path, thats left and down...), buy all the tetra shields you can (thats the armor for tidus she sells) leave a little money left over to have atleast one fight in the monster arena, go to monster arena and defeat kottos (easy as H*ll) he will drop healing springs (i think 40), once you have a bunch of those start customizing the tetra sheilds (tidus' armor you just bought) and just put SOS Regen in one slot (it takes 12 Healing springs to do that), then sell it for a big profit.... <img src="/images/graemlins/laugh.gif" alt="" />