infowars, since we talked on-line last night and you mentioned you might be willing to build I put this together for you this morning. I haven't tweaked it out... it's just a rough idea and many here will likely come up with other component ideas. It's also just slightly above your budget. If $500 is a hard and fast number we can save a little by going to an AMD system, smaller hard drive, lesser video card, etc.
As I mentioned to you last night, the system you are considering will be limited by the on-board video, and when you decide you want to upgrade that, you'll also have to upgrade the power supply. See Serenity's thread in this forum. He has a similar machine with the same on-board video.
If you still decide you want to buy at a store, let us kno and we'll help as much as possible.
Update COOLER MASTER Centurion 5 CAC-T05-UW Black Aluminum Bezel , SECC Chassis ATX Mid Tower Computer Case - Retail
Model #:CAC-T05-UW
Item #:N82E16811119068
Return Policy:Standard Return Policy
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$54.99 -$10.00 Instant $44.99
Update Intel BOXD945GCNL LGA 775 Intel 945GC Micro ATX Intel Motherboard - Retail
Model #:BOXD945GCNL
Item #:N82E16813121319
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$74.99 -$5.00 Instant $69.99
Update MSI N9600GT 512M OC GeForce 9600 GT 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card - Retail
Model #:N9600GT 512M OC
Item #:N82E16814127333
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Mail-in Rebate
$109.99 $109.99 - $30.00 MIR = 79.99
Update PC Power & Cooling Silencer S41D2 410W ATX12V Active PFC Power Supply - Retail
Model #:S41D2
Item #:N82E16817703014
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$64.99 -$5.00 Instant $59.99 - $20.00 MIR = 39.99 Free Shipping
Update Intel Pentium E2180 Allendale 2.0GHz LGA 775 65W Dual-Core Processor Model BX80557E2180 - Retail
Model #:BX80557E2180
Item #:N82E16819116052
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Update Kingston 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 667 (PC2 5300) Dual Channel Kit Desktop Memory Model KVR667D2N5K2/2G - Retail
Model #:KVR667D2N5K2/2G
Item #:N82E16820134046
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Update Seagate Barracuda 7200.10 ST3250410AS 250GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM
Model #:ST3250410AS
Item #:N82E16822148262
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Update Microsoft CA9-00001 Black PS/2 Standard Basic Keyboard and Mouse - OEM
Model #:CA9-00001S
Item #:N82E16823109132
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$15.99 -$1.00 Instant $14.99
Update SAMSUNG 22X DVD Burner Black SATA Model SH-S223F - OEM
Model #:SH-S223F
Item #:N82E16827151171
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Update Creative Sound Blaster SB0570 Audigy SE 7.1 Channels PCI Interface Sound Card - Retail
Model #:70SB057000000
Item #:N82E16829102002
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Update Microsoft Windows XP Home Edition SP3 English for System Builders 1 Pack CD - OEM
Model #:N09-02215
Item #:N82E16832116511
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Subtotal: $597.89 - $50 MIR's = $557.89 + shipping on 4 components