So basicly i run my wows on one pc, and figured i need sumthing with a bit more juice in thatn what i have now.
Sadly i've been away from "whats new and hot" on the computer market since the mid 90's, so a little input would be apreciated to stop me for getting the wrong stuff for my pc

This is it
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PCI-Express 2.0, 2xDVI, HDCP, HDMI, Core 240x2, Graphics Plus, CUDA, 55nm GFX
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ASUS Silent Knight II CPU Cooler, Blue COOLER
Light, Socket 478/775/939/940/AM2/AM2+
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Corsair Powersupply 620W, 120mm Vifte, PS
8xSATA, ATX/EPS, 2xPCI-E, 20/24pin
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Cooler Master HAF 932 ENCLOSURE

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OCZ Platinum XTC DDR3 1600MHz 6GB KIT
3x Platinum Z3 XTC 2GB, CL7-7-7-24, 1.65 Volts, 240pin X2
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Intel Core™ i7 Quad Processor i7-920 CPU
4,8GT/sec, 8MB, Boxed
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Gigabyte GA-EX58-UD3R, X58, Socket-1366
CrossFireX, DDR3, ATX, GbLAN, Firewire, 2xPCI-Ex(2.0)x16 MAINBOARD
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Microsoft Windows Vista Home Basic OS
SP1,OEM,DVD,64
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pluss one panda teddybear for cuddelyness
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Any inputs? =)