I have an HP ProBook 6455b laptop (AMD Phenom II 2.8ghz Dual Core, 4gb DDR3, ATI Mobility Radeon HD 4250, Hewlett-Packard 1455 Motherboard) and was wondering about upgrading it (cost-effectively). I play WoW an some other games which it runs just fine (low graphics are what I normally play on and don't mind them), but I recently got Final Fantasy XIV: A Realm Reborn and running it on the lowest settings I get quite a bit of lag. Anyone know of some not too expensive upgrades I could do? Maybe an Intel i7 m260 or something; I don't know much about hardware compatibility (though I'm capable of preforming the upgrades). Any help would be appreciated.