it started off with one pc for everything... then i managed to source some old redundant Pentium 3 pcs which i used for linux server hosting mp3's and movies.
Then i done away with them and just built a beast server that did all the jobs of the seperate boxes quite well. I call it my media centre, even though it is just a linux box with glftpd installed and a zipscript.. xbmc is still able to browse its shares and stream from them.
my other pc is a c2d e6600 which i use for everything else.. gaming, surfing, download, burning...