I seem to recall an upgrade of some sort sold online for these machines way back when. It was a larger replacement top and power supply that enabled installation of a second hard disk and/or a CDROM. I thought it was pretty cool and would've purchased one for my Performa 475 about eight years ago if I had any money. Now, however, I don't remember anything about the company or even the product name (and can't find much on Google aside from another forum hit), but I'm sure someone else remembers seeing it. It's fairly pointless, since a Quadra could do all the souped-up LC could and more, but it's kind of interesting all the same.
