i <3 my WMC pc.
i like to run itunes in the background, so i can use the remote app to play stuff through my amp with the TV switched off which is quite impressive to the technically uninclined.
also it runs my 'legal downloading system' by auto loading 'legal download' files from my drop box after i put them there from my mobile... not sure if a mac mini has so much functionality but it's personal preference i suppose.
the only thing i did wrong was run it with a 'normal' psu instead of a laptop PSU - i might change it and then it would be 100% silent/no moving parts
