i love my samsung syncmaster 959nf. the most expensive samsung 19¨ crt, but it's definitely worth it.
regarding the specs you might want to swap the motherboard for a asus p4c800, and make sure you get 2x256mb ram, not 1x512, unless you plan on soon getting another stick on 512mb.
you could also consider going for a a64 motherboard and a a64 3200+. that'll be notably faster, but if you're going for a64 then you'll want to wait about a month or so, because new cpu "versions" are on the way, and if you upgrade then then you'll have more to choose from later.
the 9800 pro is a fine choice.
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