Please help with component compatibility

I'm not the type to go and buy a ready built p.c .. and so I've put together a spec for my new machine that I desperately need to get my hands on as soon as possible. My only worry is that I haven't been able to keep up with technology and require professional help with hardware compatibility. If I get the go ahead from someone in the know, I will have the parts delivered and have a pro assemble it for me  

If anyone can tell me if I have selected a range of compatible components, it would be very much appreciated. Unfortunately I will still be running 32 bit, as I cannot afford to purchase the 64 bit software yet. I work from home, but I also play at home and that's why I want a semi descent machine. I have kept future upgrades in mind. It's too costly to stay at the top of technology but I definitely want to stay above average. Although i'd like to know if it will all run, I'd also like to know if it will run well (optimized).

The only components I need help with is the box and all it's insides. I will keep using my current mouse, keyboard and monitors. (Logitech Keyboard, Razor Habu Mouse, 22" Samsung Monitor, 19" Hanns.G Monitor)

Here's the spec I've put together: (I've included the links to the hardware for further details if required)



Motherboard: R 4,350.00
http://www.comx-computers.co.za/GA-X58-UD5-GIGABYTE-S-S...

Intel LGA1366
GA-X58-UD5

Product Summary
GIGABYTE "S Series" X58 & ICH10R Chipset Socket LGA 1366 @ QPI Up To 6.4GT/s - For Intel Core™ i7 Processors Only - 3x 16X PCI-E, 1x PCI Express x1 & x4, 2x PCI, 6x DDR3 1333 (Tri Ch) ,10x Sata2 RAID, 1x ATA133, 12x USB 2.0, 2x Realtek GBE LAN - Durability 3 Series - All Solid Capacitors, 8ch Home Theatre Audio, SILENT-PIPE Cooling, Up To Quad CROSSFIRE, Up To 3-Way SLI

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Processor: R 4,040.00
http://www.comx-computers.co.za/CPU-i7920-Intel-Boxed-C...

Intel Core I7 Quad Core Socket LGA1366 Processors
CPU-i7920

Product Summary
Intel® Boxed Core™ i7 920 Processor - 2.66GHz Quad Core, Socket 1366, 8MB L3, 4.8GT/s QPI, 45nm, x64 Support, 3 Year

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Memory: R 2,085.00
http://www.comx-computers.co.za/ME-K2GD3X13x2-Kingston-...

DDR3-1333 240pin PC3-10667
ME-K2GD3X13x2

Product Summary
Kingston Hyper-X KHX11000D3K2/4G , 2x 2Gb/2048mb kit , ddr3-1375 , CL9 , 1.6v - 240pin - lifetime warranty

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Graphics Card: R 5,930.00
http://www.comx-computers.co.za/SC-XGTX285B-Xfx-GX-285N...

SC-XGTX285B Xfx GX-285N-ZDB Black edition, geforce GTX285 Graphics card
XFX 16x nVidia PCIE SLI
SC-XGTX285B

Product Summary
Xfx GX-285N-ZDB Black edition, geforce GTX285 , SLi support , Pci-E 2.0 16x , support HybridPower , 1Gb/1024mb 512bit DDR3 , support DirectX 10 + shader model 4.0 +FP32 HDR + 16x AA ; max resolution 2560x1600 , HDCP Compliant , RoPs : 32 , 159Gb/sec memory transfer , 240 stream processors @ 1.476Ghz ( pixel shader engine + vertex pipelines ) , core/memory : 690/2600mhz , 2 x dvi ( with dvi to d-sub + dvi to hdmi ) , HDTV tvout

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Power Supply: R 1,485
http://www.comx-computers.co.za/computer-store-specific...

TT-W0105RS

Thermaltake ToughPower 700Watt - ATX 12V 2.2, EPS 12V Version, SLI,CrossFire,Dual Core CPU Ready,With Active PFC -14cm Fan

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P.C Chassis 1: R2852.62
http://www.youtube.com/watch?v=i0I0u6CiZ4A&feature=Play...

http://www.prophecy.co.za/ikonik-smooth-chassis-without...

IKONIK RA X10 SMOOTH, ATX CHASSIS without PSU, BLACK
[A3_IK-X10-K]

SPECIFICATIONS

Model name Ra X10 Smooth
Case type full tower
Dimension (W x H x D) 220 x 572 x 606
Color Black / silver
5,25” drive bay 6 (incl. convert kit for 3,5’ external device)
3,5” internal drive bay 8
Expansion slots 8
Side panel Solid with noise absorbing foam
Material Entire aluminum (3.0 mm front door / 1.2 mm body construction / 2.0 mm material thickness construction bars
I/O panel top (dual e-SATA / quad USB 2.0 / one IEEE 1394 / one audio)
Cooling 1 x front 120 mm incl. LED + 1 x 120 mm optional / rear 1 x 140 mm / rear bottom 2x 80 mm / optional 1 x 120 mm bottom
Mainboard support µATX / ATX / CEB / E-ATX (extended-ATX)
Tool-less design One-touch removable front drive-bay cover / removable MB-tray / one-click HDD installation
Protection Rubber op HDD and PSU railing for anti-vibration and noise reduction
Maintenance Removable and washable filter, HDD cage and MB-tray
LED Front
Design Diamond-cut front door/ rotatable & removable anti-dust cover / EPS 12V PSU support/ 3D curve AL top cover

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DVD Rom: R 335.00
http://www.take2.co.za/electronics-lg-gh22ls30-22x-ligh...

LG GH22LS30 SATA 22x LightScribe Dual Layer DVD Writer - Black / Ivory

LG GH22LS30 , 22x , Lightscribe , Sata , black+beige bezel , support SecurDisc technology ( password protection , digital signature , data integrity check , PDF copy protection ) , super-multi : DL dvd+R , dvd±r/rw + dvd-ram + cd+/-rw ; 2mb - retail pack



Right, well, that's it!
I haven't done the hard drive research yet but would welcome any recommendations   I just want to also explain that this p.c is going to be for playing my games (GTA IV ... and the like. Serious hardware intensive games), but I also work from home (Graphic Designer) and as much as I'd like to go with the 3D Video cards for enhancing my 3D applications, it's too costly to get the type of card that will be equivalent to the higher ranges of gaming cards.

Thanks in advance for any help you may have to offer