Another ~2k rig question

 

Copy of 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: XFX X58 3X SLI (Intel X58 Chipset) (Supports Triple SLI or CrossFire)
System Memory: 3GB DDR3 1333MHz Digital Storm Certified by mushkin enhanced (Highly Recommended) (Hand Tested)
Power Supply: 750W Corsair TX (Dual SLI Compatible)
Card Reader: - No Thanks
Hard Drive Set 1: Operating System: 1x (500GB 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±R/RW/CD-R/RW (DVD Writer 20x / CD-Writer 48x)
Optical Drive 2: - No Thanks
Internet Access: High Speed Network Port (Supports High-Speed Cable / DSL / Network Connections)
Video Card: 2x SLI Dual (NVIDIA GeForce GTX 275 896MB (Includes PhysX Technology)
Add-on Card: - No Thanks
Sound Card: Integrated Motherboard Audio
Extreme Cooling: AIR: Stage 2: Noctua NH-U12P High Performance Cooler (Compatible With ONLY i7 Processors)
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 (Red)
Enhancements: - No Thanks
Chassis Mods: - No Thanks
Boost Processor: Stage 1: Overclock the processor between 3.3GHz to 3.9GHz (Requires Air Cooling Upgrade)
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) With Windows 7 Upgrade Coupon
Restore Kit: Digital Storm Specialized Recovery System (DVD Image Based)
Virus Protection: - No Thanks
Office: - No Thanks
Benchmarking: - No Thanks
Install/Test Game: - No Thanks
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, Ship Within 5-10 Business Days After Order Is Successfully Processed
Warranty: 3 Year Platinum Care Extended Parts & Labor Warranty

 

 

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Like others, I also have been looking at the P&V system, but am now becoming convinced I'd be better off spending $200 more for 2X SLI 275s and cutting some corners elsewhere.

 

Main thing I'm wondering now is, will going from 6GB to 3GB system ram create much of a performance hit for processor intensive tasks?

 

This rig will be 99% a gaming toy, but for the small amount of work I'd do on it, I'd hate to take too much of a CPU/memory hit. The 2GB I'm currently running on a 3 yr old C2D6700/680i/8800GTX rig is good enough, but I definitely wouldn't want less.

 

Thanks in advance for any advice.