hardware selection
Based on some research on price and performance I have chosen this hardware:
ASRock ION 330
(low power Atom system with impressive NVidia ION graphic chip set that
is able to decode full HD (1080p) easily. The ASRock is a very small
system that produces very little noise (no CPU fan, unfortunately it does have a GPU fan and case fan). But because it
has no PCI slots, I was unable to re-use my PVR350 and PVR500 dual
tuner from my old system. For that reason I purchased 3 new Hauppauge PVR USB2 tuners (with hardware encoding).
The ASRock ION uses less than 40 Watt's. The tuners use 15 watt each. That is more than the ASrock! Because I didn't want to let the Tuners drain energy when they are workless, I purchased a Silvershield powerswitch that can switch on and of power outlets with an USB connetion.
Of course I don't want the tuners, Silvershield SIS-PMS and cable spaghetti to be visible in the room so I can't use one of the three build in IR receivers that are in the tuners. So I purchased a nice styli USB receiver from Philips: OVU412000
To display MythTv menu and status info I purchased the LCD Smartie Display from
Sure Electronics