I've an old
Sun Ultra10 SPARC No reason why you can't use the G3 though (unless its too unwieldy).
I also have my brothers old Hewlett Packard computer. I've passed the HD onto a neighbour (when I set them up with GNU/Linux
) but its only sat around gathering dust. It appears to only have a CD-RW in there, but DVD-RW's can be had for
~£15 (I've two of these in my desktop/server and they work perfectly). You'd need an HD too, many options, you could stick a huge HD in there and rip your DVD's so you don't have to carry them around or get a small cheap one just to install the OS on. RAM wise its only got 256Mb, and theres no dedicated graphics card, but this would work perfectly with some sort of Linux variant installed
Let me know if you're interested, can supply pics.
I'd be tempted to take the G3 off your hands but would only incur the wrath of my wife as I'm supposed to be getting rid of some of the four PCs that I have under the desk (one used, the SPARC doesn't really boot yet and the other one's even older than the above).