Thanks for your reply Valent, although I don't really need anything
I already mentioned the Intel Atom platform in my previous post, and indeed, they perform well.
Those nVidia (ion) nettops you have can easily be used as nice media directors too.
What I'm trying to establish here is the difference between the standalone dce and LinuxMCE core.
While dcerouter doesn't have to be more than one application, the functionality supplied by LinuxMCE has to be supplied by a suite of applications and needs domination over your home network.
Standalone DCE would be quite useless if distributed as a distribution independent application (rpm or deb something). LinuxMCE core functionality is difficult to implement without complete control over the system, therefore it's logical to make a distribution of it.
A platform like DD-WRT already supplies a lot of the functionality needed by MCE (except DCE then).
Most people already have DD-WRT capable hardware in control over their home network, if it were to add standalone DCE functionality (without any hassle), it would open up LinuxMCE to a whole new group of people.
I think dcerouter and dhcp server would be mandatory, PXE server can be local.
Would the only bottleneck be the media database? If so, there should be some effort making it distributed.
 @Techstyle: Yes, like I said to totallymaxed: I was hoping to get a response from Hari as he's listed as the moderator here. Maybe I should ask him to respond in a PM?