A basic but upgradeable rig

Budget:
$1300 is kind of pushing it for my budget but I am slightly flexible in that I am willing to go slightly higher for upgradeability and longevity of life for my computer's parts.

Usage:
Mostly World of Warcraft and other MMO's as I please, as well as single player games that come out. I'd love to run WoW on Max settings and modern games on at least high. This computer will also be used for various work related things but nothing more intensive than PDFs and Power Points.

Special Needs:
High dust environment, but I'm good about cleaning my case out on a regular basis, at least once a month and usually more around twice.

http://www.digitalstormonline.com/comploadsaved.asp?id=450652

Is what I have so far. I took the budget build from the configuration buying guide and added ona 750W power supply for upgrading in the future. It was recommended that I go with some more advanced cooling for longevity and more overclocking power. My question is, would some of the cheaper additions to cooling options make that much of a difference (the +$40 liquid cooling of the CPU) or would I do just as good to go with what I currently have.

As stated above, I'm already pushing my budget limit with $1300 but I am slightly flexible in upgrades for longevity of life for this computer and upgradeability down the line when I have more money.

who cares? lol i hate this question so much

1920x1600 is my main gaming monitor, 24 inch wide screen. My secondary monitor I only use for messenger programs, internet, etc. and is a 19" non wide screen

Originally posted by maxyme it matters because of how smooth the gameplay will be while gaming

yea but he already listed his budget, and a 480 isnt in it, even if his budget was higher and his monitor was lower, for a gaming computer, video power comes first, always.

Thank you both for the advice, I'll definitely go with the mobo suggestion and a 460 GTX should do me fine for now until I have a bit more of a budget in a few months to upgrade.