Alienware gaming computer? I have never done this before?

I need a new computer. It will be used for gaming. Will these specs be enough? What should I upgrade?

Processor: Intel® Coreâ„¢ i7 920 2.66GHz (8MB Cache) Quad Core Processor
Video card: Single 1GB GDDR5 ATI Radeonâ„¢ HD 5870
Memory: 6GB Triple Channel 1067MHz DDR3
Hard drive: 1TB - SATA-II, 3Gb/s, 7,200RPM, 32MB Cache HDD
Optical drive: Single Drive: 24X CD/DVD burner (DVD+/-RW) w/double layer write capability
Sound card: Creative Sound Blaster® X-Fiâ„¢ Xtreme Audio
Monitor: 22" Dell ST2210 Full HD Widescreen Monitor

Will this be enough to play the newest games on high settings, and new titles for a reasonable length of time? Particularly the 2.66 ghz processor?
I also want to ensure I will be able to upgrade parts easily later on. This will be easy, right?

Thanks

Edit: Moved topic from Internal Hardware to the more appropriate forum. ~ Animal

Edited by Animal, 04 January 2010 - 10:50 PM.

Yes, that is quite good enough to run games like Call of Duty on it's highest settings.

i7's use the new chipset for laptops, should be good for a little while(even though those processors are reduculously expensive), im like 1 step behind you with my MSI and its still awsomecant wait for the old quadcores to drop then im updating mine a bit

Why not make a custom computer? Getting one of them Aleinwares is pretty much a premade which greatly reduces the value for money on it(well most of the time). I guess that machines costs a tonne, surprise surprise when you're dealing with Alienware/Dell.

My advice. Buy the parts seperate and build it yourself. Those exact specs would probably be alot cheaper if you built it yourself and it's not a hard thing to do either. Post your budget and me or someone else will put together a good computer for you.


Edit: Edited to remove unnecessary quote. ~ tg

yeah pending your price i would go with an MSI gx720 and use a tv or get an actual monitor then you can use it here and there and meet most of those specs for around 1100, or build a custom desktop rather than the alienware