LCDs can be replaced (expensively, but it's possible) by afficianados. The rest seems cherry enough.
The airport card is worth nearly $100, the extra battery is worth $70-$80, the DVD drives are $50+ each. Try to buy a 40GB hard drive (which is not the stock hard drive, and therefore likely not 5+ years old) and see what that costs.
Lars is right to say you'll get more if you part it out; and wrong to suggest $300 for the whole thing. But there could be someone out there that wants it whole, and understands what the parts cost--but you will need to discount them for selling it altogether.
If the LCD were pefect, I'd say $450 given the airport card, decent extra battery, the 500 Mhz speed (rather than 400), the software, the mouse, and so on. You'd be cheating yourself if you took $300. Part it out.
And by the way, some Pismo LCDs are brilliant still, have no key marks, no dead pixels, no scratches. I'm looking at one now.