The damn thing about PC's is that if you want something done it aint gonna happen, and if you're not really interested it is bound to work fine.
Example:
I had a PC costumbuild for recording and cd-writing. All the goodies in and out, like SCSI, most expensive stuff, AV harddrive and SCSI harddrives etc. After spending mucho $$$$ and loosing $$$$ clients and trying for 2 years I decided to give up on PC since this thing was haunted or something. Bought anotherone, which I couldn't get bullitproof either. Remeber I was working with clients, so every little flaw is a big one than.
So whenever the PC decided to work, it worked great. But I was never 100% sure things went correct. So when I recorded something I had to listen it through to make sure it was recorded without pops etc. When I burned it, I had to listen to it to make sure it was burned without pops etc. You get the point.
Solution:
Bought a Mac G4. All my troubles were gone. Since I bought all SCSI stuff I could just plug it into the G4 and it has worked without even one problem. I trust my system for 99,9999%. Currently I'm not even recording my minor projects to DAT when mixing.
So my case will not be an example for yours, and I'm sure there plenty of people who can tell this story the other way round, but I love Mac.
I own a Mac G4, a Mac 6400, a 475, an Ibook and a powerbook G3.