This is how my A1G4XE-system will be at the end:

[ple3003]

come on!!
i'm pretty sure the g3/g4 consumes about 5-25 watts, while the pentium3/4 as duron/athlon/XP around 50-80 watts! The 63@600 doesn't even require a heatsink!!!

The radeon 8500 doesn't get as hot as the Geforce TI 4200-4800 models. Using a slightly bigger heatsink would require a very little/slow fan.

The nortbridge from VIA does not need cooling, and wont get very hot at all.

OK, hd:s can get very hot, but i've never had to use any form of cooling on my IBM 60GXP 7200rpm. But if you're going to use two hd:s, just don't squeeze them togheter. Separate them a bit.

The PSU actually does a great job in transferring the heat away from you computer, as it is placed in the top of the tower. Usually enough, and it's pretty quiet too.

Last note: i'm bying a PPC to get rid of all the fans/noise, not the opposite  ;-)

[ple3003]

Me baby:  :-D

[ple3003]

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The nortbridge from VIA does not need cooling, and wont get very hot at all.
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I recall my old box's VIA Northbridge has a heat sink installed (MSI built motherboard). Are you referring to the VIA south bridge?

Seems like i got some facts mixed up  :-)
I actually meant tha Articia northbridge chip, that doesn't need cooling. neither do the VIA southbridge....