A word of caution, if you are starting this game up with dreams of pvp and pk'n people you will be sorely dissapointed in what FFXIV has to offer; especially in comparison to what you would be use to in WoW. They have one instanced pvp zone being a 4v4 arena called the Wolf's Den, and although you can join the que with a premade group, there is no server ranking system or other form of comparative achievements to compete for. The only rewards for PVP are earning titles for your character and items that only have a purpose while in the Wolf's Den.
4v4 on the same arena floor (circular with small walls to block los in the effective corners of the ring) gets VERY boring VERY quick, and as the PS3 already has poor framerates etc compared to PCs I highly doubt the game will be implementing a battleground anytime soon. I liked the dungeons FFXIV has to offer, however the PVP available is mind-numbingly boring.
If PVP is just an added bonus and you have a boner for all thing FF its a good game, but if PVP is the gas to your fire then you are going to be disappointed. Hope you enjoy it though, cheers!