need a new gaming computer

Ok so i only play guildwars for online games and i did all the testings for guildwars 2 and my computer is getting old and just doesn't run well. its not fast enough and it doesn't have good graphics or anything.

I would like to purchase an entire new computer just for gaming. i know there are computers that are made for gaming and they can work just like a normal computer that is what i want. i found this one on amazon http://www.amazon.com/Microtel-Compu...ming+computers and i read a lot of good reviews on it but I KNOW NOTHING ABOUT COMPUTERS lol so if anyone can help me and lead me in the right direction that would be fantastic. i would like to spend under 1000$ to be honest i would like to spend less then 800 is possible but i need something that runs my games amazingly well. right now i have an Acer model: Aspire X34000G its only 2 years old but it ran GW2 horribly. i couldn't get my character to move how i wanted cause it was way to slow.

thanks again. someone please help

You could consider just upgrading the graphics in your Acer. It probably only has the on-board graphics instead of a actual graphics card.
There are a few minor details though - the Acer is a small system which can only accept low profile video cards, and it only has a 220watt non-standard power supply.
However you could get a low profile HD6670 or HD7750 which would increase your graphics performance significantly.
http://www.newegg.ca/Product/Product...82E16814102958
(A low-profile HD7750 would be best, but they are just coming onto the market and may be hard to find. The HD6670 may have problems with that small of a power supply)

The new system you linked should work fine. The important thing with any "gaming" computer is a proper balance between CPU and GPU power - which that system has.
You don't want a computer that uses just Intel graphics or on-the-motherboard graphics, except for an AMD APU. Some other posters may know of some better choices within your budget, but it would help to know where you are located (as in what country?)
Also, I would suggest that you re-post this on the GW2 Guru forums for more replies. http://www.guildwars2guru.com/forum/...ying-building/