At least 2GHz CPU
Between 256 and 512 MB ram
Disk - two 200Gb disks? Maybe LVM? Either XFS or JFS?
2x Hauppauge 350 capture cards or 1 350 and 1 DVB card (is DVB available in Norway)?
Soundcard - probably the on-board one will be good enough
Vid card - TV out - use the 350?
Testing some of the software that Myth TV uses. XML TV for Norway is currently broken in the release version - but the CVS version of the grabber seems to be sorted.
So - how to make a box that is powerful enough but quiet enough? Some of the mini-itx boards look good - but - not enough slots - so ... how to decide what the hardware should actually be?
Looking at setting up a MythTV box (MythTV)
Normal questions - what hardware to get - why can't you get motherboards without inbuilt sound/screen/net etc etc.
Could be fun - so far it may look like
2.x+ GHz processor
2 or 3 250 Gb disks (maybe time to learn lvm?)
Hauppauge 350 encoder/decoder card (1 or 2)
Not sure about graphics card or sound card just yet.
Longer term - add a DVD burner 