Don't buy laptops for heavy gaming from big companies. They take advantage of their customers' lack of knowledge of the actual cost and power of components and you end up having to pay 150-200% what you need to to get the performance you want. Instead it's best to do one's research and get a custom built laptop from a site like http://www.pcspecialist.co.uk/
(where I got mine for about £750, i7 processor. 555m GPU). After a little Googling I see there are similar small companies in the US like http://www.malibal.com/
I know people say don't get a laptop for gaming but for me it was my only option due to space considerations. Regardless, it's much faster than my 5 year old desktop so I've got no complaints. If a new game won't play well on this, honestly it won't play well on the vast majority of most people's computers which means the developer is at fault (eg. what you saw with FFXIV 1.0). If ARR won't play well on this (or even present day integrated GPUs), well, I don't think there's going to be a very big userbase.
If you don't care about future proofing so much and FFXIV is the most demanding game you plan to play, something less powerful than what I bought will probably be okay. But no point risk wasting money to find out, so wait till it comes out. Edited, Mar 13th 2013 9:40am by Dizmo