I'm confused, how would the PB540 have been useful for a MiniITX machine?
Oh yeah
http://pcdb.overclockers.com.au/view.php?name=bYrd&page=pics
... this is my EPIA-based system which I built about five years ago; it's now running an M10000 board @ 1.2Ghz, 1GB RAM/120GB HD (soon to be 320GB and PCI video card). Bloody great system - regardless of VIA's ITX boards to be behind the times, it the most reliable PC I've ever built.
More PB540 news: installing 8.1 as I type this.
JB