Need help with optimizing build

The specification I'm thinking about getting is below. I have a 24 inch monitor so the games will be in 1920x1080. I'm looking for something that will last me for about 3 years before I give this system away and buy something new so I won't be doing any upgrade to this system. Any suggestions is appreciated. The biggest question I have is what overclock CPU number should I be expecting? I see people with 3.3GHz OC and I would like to avoid such a low number if at all possible.


Specifications:
Chassis Model: Special Deal Hot Seller - Cooler Master HAF 932
Exterior Finish: - Not Available
Trim Accents: - Not Available
Processor: Intel Core i7 930 2.8GHz (Quad Core)
Motherboard: EVGA X58 LE Edition SLI (Intel X58 Chipset) (Supports SLI or CrossFire)
System Memory: 6GB DDR3 1600MHz Digital Storm Certified Performance Series  (Highly Recommended) (Hand Tested)
Power Supply: 750W Corsair TX (Dual SLI Compatible)
Expansion Bay: - Not Available
Hard Drive Set 1: Operating System: 1x (600GB Western Digital Velociraptor (10000 RPM) (32MB Cache) (SATA) (Extreme Speed WD6000HLHX)
Set 1 Raid Options: - Not Available
Hard Drive Set 2: Multimedia\Data: 1x (1.5TB Seagate Barracuda (7200 RPM) (32MB Cache) (SATA) (Extreme Speed)
Hard Drive Set 3: Backup\Misc.: - No Thanks
Optical Drive 1: DVD±R/RW/CD-R/RW (DVD Writer 22x / CD-Writer 48x)
Optical Drive 2: - No Thanks
Internet Access: High Speed Network Port (Supports High-Speed Cable / DSL / Network Connections)
Video Card: 2x CrossFire Dual (ATI Radeon HD 5850 1GB)
Add-on Card: - No Thanks
Sound Card: Integrated Motherboard Audio
Extreme Cooling: AIR: Stage 2: Noctua NH-D14 Extreme Performance (Does NOT fit on the regular EVGA X58 3X SLI)
H20 Tube Color:- Not Available
Chassis Airflow: Standard Factory Chassis Fans
Internal Lighting: Internal Chassis Lighting System (Blue)
Enhancements: - Not Available
Chassis Mods: - Not Available
Noise Reduction: - Not Available
Boost Processor: FREE: Stage 1: Overclock the processor between 3.3GHz to 3.9GHz (Requires Air Cooling Upgrade)
Boost Video Card: - Not Available
Boost Memory: - Not Available
Boost OS: - Not Available
Windows OS: Microsoft Windows 7 Home Premium (64-Bit Edition)
Restore Kit: Digital Storm Specialized Recovery System (DVD Image Based)
Virus Protection: - Not Available
Office: - Not Available
Benchmarking: - Not Available
Install/Test Game: FREE: Please include a free copy of a hot-selling game
Display: - No Thanks
Surge Shield: - No Thanks
Speakers: - No Thanks
Keyboard: - No Thanks
Mouse: - No Thanks
External Storage: - No Thanks
Exclusive T-Shirt: FREE: Digital Storm T-Shirt - Black (Medium)
Priority Build: - No Thanks, Ship Within 5-15 Business Days After Order Is Successfully Processed
Warranty: 3 Year Platinum Care Extended Parts & Labor Warranty

Thanks DST4ME. One thing I'm curious about, can you let me know the reason for the Win7 Pro recommendation?

Ok good just in case the reason was xp mode.

Grats and good luck! Mine should arrive tomorrow.. I think i am going to go insane the waiting is killing me!!!

Thanks. I hope the computer comes quickly since I can't see the season finale of Spartacus until I get it . 

I'll use the time off to go pray to the CPU God to give me a good chip that hits 3.9GHz 

Awesome. Put in the order on 4/21. The computer shipped today and is scheduled to arrive 29. I was initially concerned about the OC since the i7 920 DST computer my brother got at the end of last year only got an OC of 3.3GHz with the Noctua Dual 120mm cooler. I got the i7 930 with the Noctua NH-D14. It looks like the law of average took effect in my family.

I knew he was up there so I closed my eyes, whispered a prayer, and he answered me with a 3.9GHz OC. Thank you Superman

Overclocked Processor Settings

Processor Speed GHz: 3.9
CPU Multiplier: 21
Voltage CPU VCore: 1.35
VDroop Control: Yes
i7 - BCLK MHz: 189
i7 - Voltage QPI\DRAM:
i7 - Voltage QPI\PLL:
i7 - Voltage CPU VTT: 150
i7 - Voltage IOH Vcore:
i7 - Voltage ICH Vcore:
i7 - Voltage IOH/ICH I/O:
i7 - PWM Frequency:
780i/790i - Memory Clock Mode:
780i/790i - CPU FSB MHz:
780i/790i - Voltage FSB:
780i/790i - Voltage SPP:
780i/790i - Voltage MCP:

Motherboard BIOS: S851
Video Card Driver: 10.3
Chipset Driver: CD
Sound Card Driver: CD

The OC info should come in the Stage 7 email.  Best of luck with your OC result. I think we have almost the exact same build.

well actually 920s are suppose to oc better then 930 from what justin says, but your brother can always post his settings in the "Performance/Overclocking " section or call DS and see if they can raise his oc, I'm sure justin can get him to 3.6, the Noctua D14 and 12 can both give you 4.0GHz most times if you know what you are doing.

in short don't compare to eachother, chips don't work that way, temps and oc and vcore are gonna be some what different, and there is not a big difference between 3.7GHz and 3.9GHz in gaming, and most tasks, so don't be bummed out if you get a 3.6GHz or 3.7 or 3.8GHz oc, at the end of the day you are running faster then a 975 at a fraction of the cost.

I'm with you tho if things go the way I'm being told, then it might have been better if I build this pc myself.

Mine should be delivered tomarrow around 11am pst. Got all my other software ready and waiting. Wife was shoked I even cleaned my desk to make it all nice and pretty.

Got friends who work there as well as they deliver to my house everytime around 11 am... Really hot blond as well. (Brandy) She is really nice. Always takes extra care of my package.

Congrats to all of you, they are all nice ocs

It was my pleasure

My pleasure boss

lol my pleasure