I dont know about that Puma. Im typing this on a 10 year old PC that I havent upgraded since the year I bought it. (okayy.. I did upgrade from Win 95 to Win 98). If I'd upgraded every 4 years I'd now be about 2 grand worse off!
NB I AM about to upgrade though - to my sisters old PC that she's going to give me. That one's also been running flawlessly for ages, its 7 years old. Its 800mhz I think.
Im going to stuff a newer hard drive in my latest aquisition - and in the long run get a network card (20 quid) and squeezebox device (200?) - and hey presto a cheap digital dukebox.
I dont see any reason why you need a mega computer to do it.
Banger-nomics 