I'd wait.
Wait until July. By then the full-on AMD 64 will be with us. Couple that with the nVidia 6800 Ultra in a case supplying 500w and you will have a desktop that 3 years ago cost Pixar $180,000. I'd use the current Mitsubishi 19in CRT or maybe LG/Illyama equivalent to enjoy the result.
I believe we are at the Top Dead Centre of a new generation of PC's. Hold on for a few months if you can and ride the wave.
Cheers
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