Currently playing around with a Dell Optiplex SFF with a P4 1,5Ghz. Not really useable for production stuff ;)
Will try out my Core Duo laptop as a MD.
Plans on buying a HTPC - thinking a AMD X2 5000+ or more, mATX in the Antec NSK2400 case, with some sort of tuner - either a hauappauge analog one or possibly a hdHomeRun if its useable in Sweden.
I want high-quality sound so maybe a M-Audio Audiophile 2496. Would not mind an external card though if I could find a good one, but software for those under linux seems icky.
Has a NAD-amplifier that would be nice to control from LinuxMCE. Might add support for this.
I am already using Asterisk for my landline, and slimserver to stream mp3:s.
Lives in Sweden.