inark, why would you choose a p4 over a amd 64? especially considering 64 bit windows will be out early next year, and the p4's over 2.8ghz run hotter than hell ?
you seem to want to spend bucketloads of money, so,
if you wait about a month, you can get a nforce4 chipset socket 939 m/board that has SLI on it that can have two of those fancy video cards you want. ( you can start with one then get another later if money is a constraint )
how would dual vid cards with your nice (and expensive ) dual 19" displays !!
eventually you could add two more 19" diplays to the mix and have 4 monitors running off your machine. !!
YOU COULD READ 4 SAU THREADS AT ONCE, FULLSCREEN