Look on Nvidia.com with the month's best rigs, there is a guy with 16 GB Ram and special developer graphics cards in SLI formation...it's like 1000$ for each card if i'm correct.
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XPS Gen2 2.13 Ghz, 2Gig RAM, 60 GB 7200 rpm, DVD +/-RW, Bluetooth, Intel 2915 a/b/g...No light leakage up in this ma'