ru some prince or something? u hv so much power at hand with fx55 n still wanting more. listen, amd is going to release new cpu just about in DEcmber specificaly meant for gaming. U can take c2d x6800 (44000) for powered performance when it comes to editing audio n video. The addition of this card over its brethren e6800 is its overclocking ability. u can clock it on custom basis at 3.1 ghz with no cooling, 4.1 with normal cooling solution or 5.5 ghz with liquid nitrogen cooling. buy it or, just wait till first quarter of 2007 n take home abrand new core2quad processor, ie 4cores in 1cpu.
invest in 1ghz 4gb corsair ram.
for mobo, either take an ASUS p5w dh deluxe or an intel D975XBX board. but, they support ati graphic cards, in crossfire mode, no SLI
i dont know about sli supportive mobo other than those with nvidia chipsets.
take home a seagate barracuda hdd 750GB.
Allow the rest of the money for a good physics unit ngrafix unit after directx10 is released. Also, save some for a cooling solution.
and as for the cabinet take home an Antec cabinet with a 500watt PSU for about 7500/-
(the processor is a voltage hogger n was suggested assuming u can foot high electricity bills. But it will hog only if u overclock it beyond 3.1ghz)