Powerbook best destination

Yes I realize this may be out of place in the Buying advice, but I don't know where else to ask. I inherited a Powerbook G4 12" last year.[specs at end of post] I already had a Macbook pro and had been planning on using the powerbook to take notes in class. I refurbished it as best I could and got it working fairly well, but I've decided not to use it for school.

This poses the problem, I no longer have a use for it, nor do I have the space to just keep it laying around. I'd much rather see it being used. I was thinking of either donating it to a Goodwill type organization or selling it via eBay or Craigslist.

I guess what I'm asking is what do you think would be the best destination for this mac, Donation or eBay? (What should I ask if I go eBay?)

Specs:
Powerbook G4
PowerPC 867MHz
1.25GB RAM
Mac OS X 10.4.11
Includes all documentation, original Panther restore discs as well as Tiger upgrade disc and documentation.
the body is in fair shape, there are a few dings and bends in the lower casing. Includes aftermarket power cord, original one died. Screen is in excellent shape, no scratches or dead pixels. I had to replace the hard drive, now has 80GB instead of 30GB. RAM upgraded from 256MB chip to a 1GB chip. Keyboard is fine except that it's missing the spacer above the right arrow key.

well, I could always use the money, usually the donating aspect is for the tax break, though now I think about it, I could sell on eBay and donate the money to the red cross.
If I were to sell on eBay what would be a decent asking price for this Mac?