Looking for computer/option build one or buy alien computer ?

Much cheaper, and you'll get the same amount of power. There are plenty of guides online, as well as experts in the guild who could give you a walkthrough.

Here's a chart I posted here a while back.  Might help give you a starting point.  The guy who made it updates it now and then.

http://media.photobucket.com/image/recent/The_FalconO6/CurrentLogicalPCBuyingGuide/Guide.png

Has some pretty good articles on building fast machines on a budget.

http://www.tomshardware.com/reviews/phenom-ii-overclock-graphics-card,3032.html

Don't build, but don't buy an alienware either. Use a custom service. You'll come out better on all fronts. You'll wind up paying more for the same parts doing it yourself since you're paying retail. You'll also avoid any nightmares associated with compatability and construction.

http://www.cyberpowerpc.com/

http://www.ibuypower.com/

I built my current PC and am really happy with it. It's not a difficult process so long as you do some research into what you're buying and make sure your components are compatible. I made the mistake of getting RAM from a manufacturer that wasn't certified compatible with my motherboard and had repeated blue screen crashes until I replaced it. Not the hardware's fault, just my own lack of attention.

If you're looking at expense as a factor, one thing to remember is you can salvage your hard drive(s) and DVD drive(s) from your current machine and put them in a new one so long as they still work.

And I definitely recommend getting parts from Newegg.com. They have a great return policy if you change your mind or find something doesn't work.

i5 2500, 8GB RAM, AMD 7850 (sould be out in 2 weeks), 500 watt PSU (750 watt if you think you mau go 2x GPU sometime in the future), 90-128GB SSD + HD an DVD/BluRay drive as needed. 

Thank you  =p when i get the chance i,ll look at sites.

Well if you're looking at getting a pre-built one, you'll want something close to the specs above anyway.  Alienware's are nice, but really spendy.  Even if you aren't going to build you own, it's still helpful to know the general componant prices.  Add up the price of all the components (from above add $125 for a motherboard, another $125 for a case, and $100 for a copy of Windows 7 64-bit).  If you compare at Alienware, you're essentially paying someone $500 to put it together for you, and to provide you with customer service.  If you compare that to ibuypower or cyberpower, you'll see they're much cheaper - but the customer service can be hit or miss.  But reguardless you want to familerize youself with the componants so you can be sure you're comparing apples to apples when shopping around. 

Thanks for info, right now i have free time so looking at websites you guys gave me and few others sites friend gave me. Somewhat know what am looking for, Sadly i know little about computers but learning, i know few things so thats better than nonthing i gusse. Right now waiting for guy give computer back , hopefully he still has componants parts from my computer and hopefully not more beta crap, haveing friend look at it when i get it back, and hopefully don't have to pay 2nd time since told me on phone he was going to reapir computer again for free since only work for three days. Friend says if reapair shop guy did anything to it he fix it for food =D  Also friend says untill get parts or buy computer or whatever i chose todo, i can play wow soon i hope but i have to turn  graphic down to medium but that fine with me untill then.