I want to build a small/quiet frontend for my MythTV server.  I was thinking of an EPIA chipset.  I would be using Ubuntu 6.06 (Dapper) as the OS for the machine. 
 
I just don't know where to get the parts from.  I have seen a lot of people on the net setting this up, but most appear to be from the UK.  
 
Any guidance would be appreciated.