Dual Opterons, Tyan motherboard, 16GB of RAM, Ultra SCSI 320, Radeon9800XT.
Drool
In all honesty for 99% of all office applications an LC575 apple mac would probabley be quite fine. It might struggle with some of the JAVA scrtipt on some web pages, and have zero current software support, but it would be great for e-mailing, typing documents, and doing the odd thing on Excel. Even playing A-10 Attack and F/A-18 Hornet.
However for your power user eg. me and many other members of this fourm DP or Twin CPU Systems have distinct advantages. I'm fed up waithing 6 or so hours for my old AMD K7 1GHGz to encode Div-X movies. That's why I want the system listed above.
If all you want is to bum arround on the net, and type the odd uni assignment up buy the cheapest current modle PC you can lay your hands on, It'll be faster than my computer and I wouldn't call mine slow by any means on day to day tasks. However it just likes to take its time rendering video and audio.