Sim Racing PC for ~US$800 w/o monitor

APPROXIMATE PURCHASE DATE: 5/25/09

BUDGET RANGE: US$800

SYSTEM USAGE FROM MOST TO LEAST IMPORTANT: Strictly for Sim Racing (Iracing, RFactor/2, GTR2, etc.)

PARTS NOT REQUIRED: keyboard, mouse, monitor, speakers, OS

PREFERRED WEBSITE(S) FOR PARTS: newegg.com, tiger.com, amazon.com

PARTS PREFERENCES: Intel CPU, Gigabyte Mobo

OVERCLOCKING: Maybe

SLI OR CROSSFIRE: Maybe in future?

MONITOR RESOLUTION: 1920x1080 (Dell S2309W)

ADDITIONAL COMMENTS: No frills, will be dedicated to sim racing rig. Curious if the power supply would support a 2nd video card or that the system would be capable of running 3 monitors in the future?
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Intel Core 2 Duo E8400 Wolfdale 3.0GHz LGA 775 65W Dual-Core Processor Model BX80570E8400 - Retail $168
[url=http://www.newegg.com/Product/Product.aspx?Item=N82E16819115037][/url]

GIGABYTE GA-EP45-UD3L LGA 775 Intel P45 ATX Intel Motherboard - Retail - $95
[url=http://www.newegg.com/Product/Product.aspx?Item=N82E16813128372][/url]

EVGA 512-P3-N884-TR GeForce 9800 GTX+ Superclocked 512MB 256-bit DDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card - Retail - $135
[url=http://www.newegg.com/Product/Product.aspx?Item=N82E16814130456][/url]

OCZ Fatal1ty Edition 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory - Retail -$50
[url=http://www.newegg.com/Product/Product.aspx?Item=N82E16820227364][/url]

Antec Three Hundred Black Steel ATX Mid Tower Computer Case - Retail - $55
[url=http://www.newegg.com/Product/Product.aspx?Item=N82E16811129042][/url]

CORSAIR CMPSU-650TX 650W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS Certified Active PFC Compatible with Core i7 Power Supply - Retail - $80
[url=http://www.newegg.com/Product/Product.aspx?Item=N82E16817139005][/url]

Seagate Barracuda 7200.10 ST3250410AS 250GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive - OEM - $55
[url=http://www.newegg.com/Product/Product.aspx?Item=N82E16822148262][/url]

LG Black 22X DVD+R 8X DVD+RW 16X DVD+R DL 22X DVD-R 6X DVD-RW 12X DVD-RAM 16X DVD-ROM 48X CD-R 32X CD-RW 48X CD-ROM 2MB Cache IDE 22X DVD±R DVD Burner - OEM - $22.99
[url=http://www.newegg.com/Product/Product.aspx?Item=N82E16827136144][/url]

Microsoft Windows Vista Home Basic SP1 64-bit for System Builders - OEM - $89
[url=http://www.newegg.com/Product/Product.aspx?Item=N82E16832116483][/url]

Total - $781-$40 (rebates) = $741 + tax + shipping

I would also need some recommendations on a wireless card. I like that this system is upgradeable to 16gb ram. Just want to make sure the power supply and case could potentially handle a 2nd video card. Also want to make sure that I shouldn't be going with a 4850, 4870, or a 3870 X2?

Thanks guys!

Hey Why_Me....any explanations? I'm real curious as to how a sim racing game compares with games like Crysis, etc. Is it half as graphic demanding, 3/4?