upgrading my laptop

[water dog]

edit: upon further review, i already meet all of these requirements p. much so new question: what parts could be upgraded cheaply (100-200$) with noticeable difference? one thing i want more of is RAM, what would you recommend? or do i have enough as it is? how would i go about upgrading the performance of my computer in any way without upgrading any parts? basically what are some tips and tricks to get more out of the pc?

edit 2: i have 4 gigs of ram and after some searching i find that my laptop can go up to 8 ram. would this even make a noticeable difference? playing a high end MMO (ffxiv to be exact) what would be the best thing to upgrade to get the best bang for my buck? how important is it to have a top tier graphics cards over a middle-high tier graphics card? what is more important to upgrade on my specific build, RAM or graphics card? or maybe somehting completely different.

i only have all of the questions because FFXIV is coming out in 3 FUCKING MONTHS!!! and i figure i might as well just play the pc version instead of the ps3 version which comes out march 2011 (i cant wait that long). i played alpha ffxiv and the game was very sluggish (lots of skipping, low framerate) and i couldn't play prerendered cutscenes. what could i do to fix these problems (like, what upgrades would help fix those problems most)