What kind of crappy sound are you going to be getting out of it though? I assume it doesn't have a good sound card in it, unless at some point you put something like an AWE64 in it.
For some reason, MP3's played better on my old 166+ using I think WinAmp in the version 1.x line than they do on my current machines, or most machines I've used in a few years. I don't remember any skipping or other issues back then. But on my 1.2GHz machine, and my roommate's 1GHz, and my ex-office's 500MHz machines, we get skips and pops every once in awhile when something intensive happens.