"lowest-end" i7 barebone with upgrade potential

Just wondering what would be the first couple things to upgrade (don't have to tell the wife) in next 2-3 months.

> Ticket Number: 233912
> Total Price with Instant Savings: $1,657.00
>
> Direct Load URL:
> http://www.digitalstormonline.com/comploadsaved.asp?id=233912
>
> Specifications:
> Chassis Model: Cooler Master HAF 932
> Exterior Finish: - Standard Factory Finish
> Interior Finish: - Standard Factory Finish
> Trim Accents: - Standard Factory Finish
> Processor: Intel Core i7 920 2.66GHz (Quad Core)
> Motherboard: ASUS P6T Deluxe (Intel X58 Chipset) (Supports
> Dual SLI or CrossFire)
> System Memory: 3GB DDR3 1333MHz Corsair Dominator DHX
> (High-Performance)
> Power Supply: 750W Corsair TX (Dual SLI Compatible) (Silent
> Edition)
> Card Reader: - No Thanks
> Hard Drive Set 1: Operating System: 320GB Western Digital
> (16MB Cache) (7200 RPM) (SATA)
> Set 1 Raid Options: - No Thanks
> Hard Drive Set 2: Multimedia\Data: - No Thanks
> Hard Drive Set 3: Backup\Misc.: - No Thanks
> Optical Drive 1: DVD-ROM/CD-ROM (DVD Reader 16x / CD Reader
> 40x)
> Optical Drive 2: - No Thanks
> Internet Access: High Speed Network Port (Supports
> High-Speed Cable / DSL / Network Connections)
> Video Card: CLEARANCE HOT SELLER: 1x ATI Radeon HD 3870
> 512MB
> Add-on Card: - No Thanks
> Sound Card: Integrated Motherboard Audio
> Extreme Cooling: Standard Factory Heat-sink and Fan
> Liquid Color:- Not Applicable, I do not have a H20: Stage 3
> Cooling System Selected
> Chassis Airflow: Standard Factory Chassis Fans
> Internal Lighting: Internal Chassis Lighting System (Blue)
> Enhancements: - No Thanks
> Chassis Mods: - No Thanks
> Boost Processor: - No Thanks, Please do not overclock my
> processor
> Boost Video Card: - No Thanks, Please do not overclock my
> video card(s)
> Boost Memory: - No Thanks, Please do not overclock my
> memory
> Tweak Windows: - No Thanks, Please do not tweak the
> services on the operating system
> Windows OS: Microsoft Windows Vista Home Premium (64-Bit
> Edition) (For Enthusiasts)
> Restore Kit: Digital Storm Specialized Recovery System (DVD
> Image Based)
> Virus Protection: McAfee Internet Security (Includes:
> AntiVirus, FireWall and AntiSpyware)
> Office: - No Thanks
> Benchmarking: - No Thanks
> Install/Test Game: Assassins Creed (Pre-Install, apply
> updates, and test gameplay with my system)
> LCD Display: - No Thanks
> Surge Shield: - No Thanks
> Speakers: - No Thanks
> Keyboard: - No Thanks
> Mouse: - No Thanks
> External Storage: - No Thanks
> Exclusive T-Shirt: - No Thanks
> Priority Build: - No Thanks
> Warranty: 3 Year Platinum Care Extended Parts & Labor
> Warranty

 

Is 750W enough for 4870 * 2?

 

I put in oc and v8 and evga.

 

Downgrade the PSU, can 550W handle 1 * 4870 or 1 * 295?

 

Here is the new build: ticket # 234059.  at $1734 ($1634 with $100 off)

 

 

 

 

 

And I am thinking about install this myself.

 

couple questions:

 

1)  How hard is it to overclock the CPU?  If it involves quite a bit hardware tweaking, I probably will stick with buying V8 from DS and let DS do the overclock.

 

2) If I decide to install the coolit domino myself, do I first need to uninstall the default fan come with i7 920?

 

I was reading other discussions.  And "warranty void" came up several times. 

Just wondering, would the following three things void the warranty?

 

1.  Obviously, I will upgrade the GPU.

2.  Add more RAM

3. Replace main HDD with a faster one.

 

actually got the wife's approval to up the budget to $2000!

 

Wondering where I should spend the money on, with the special promotion, it could go up to 2125.

 

Here is my first cut at $2125, http://www.digitalstormonline.com/comploadsaved.asp?id=240133

 

Basically,

1)  RAM 3G -> 6G,      $90

2) GPU, 3870 -> 260,   $168

3) PSU, 750W -> 1000 $136

 

Is this the best way to spend the extra $400?