Best Computer for Gaming

I’ve been thinking of Alienware, but I’d also like to know of other good places that will assemble a quality gaming computer..

I don’t want to build my own, so please don’t post that.

how much would i be spending (australian dollars) to buy or make a gaming computer , i want it to be able to play games like battlefield 2, doom 3 , quake 4 , ect . should i buy or make ?

My new gaming computer is finish I have modded the case a little bit. Specs: Motherboard – ASUS Crosshair III Formula CPU – AMD Phenom II X4 965 Black Edition 3.4 Ghz (overclocked to 4.0 Ghz) Graphic card- XFX Radeon HD 5770 1GB GDDR5 Ram – Corsair Dominator DDR3 1600MHz 4GB CL9 PSU – Chieftec Super Series 750W PSU (modular) CPU cooler – Corsair H50 Hydro Series CPU Cooler Case – In-Win Fanqua Midi Tower Hard drive – 500 GB (unknown)

790i ftw EVGA Q9550 quad core running 3.6 Ghz 2x 9800 GTX +black editions XFX Ultra x3 1000 watt psu chilltech cpu cooler from ultra antec 1200 velociraptor 150GB 10.000 Rpm 4GB corsair xms3 1600 MHz dddr3 Razor Death adder mouse Razor Tarantula keyboard Logitech Z-5300 Samsung 24 monitor (wall mounted) Super write DVD burner all in one

I would like input on what gaming computer i should buy. I have a budget of 00 without a monitor or speakers. Do I try and buy one from circuit city, or do I go to the gaming computer makers?
For which one will I get more for my money?
Also, I want this computer to be able to run all the games out now, and almost any one that comes out in the next few years (if at all posible).
Anyway, where do I go, and what do I look for.
Specific model ideas would be great.

Virtual Rush AKA “The Rush” is Delaware County’s first LAN gaming center; our facility is proudly equipped with top of the line equipment, along with quality refreshments and snacks to accommodate our guests. We currently have 35 blazing fast PCs, 4 XBOX 360s, and 2 PS2′s and a GameCube. Our custom built PC’s are all equipped with quality components, software, and great games for you to choose from. Our mission is to provide quality service in an inviting environment where people of all ages and backgrounds are welcomed to hang out, compete, and be interactive with one another. Our facility can accommodate a wide range of customers anywhere from an occasional user to a regular computer expert. Whether you’re here to check your email, browse the web, chat with friends, do your homework, or compete with others; you can do it all here at “The Rush”. We often offer specials and events, so please visit our site often for current information and updates! Again, thank you for visiting; we look forward to seeing you at Virtual Rush — A Premier Gaming Center! www.virtualrush.net