The "Pismo" laptop is great older Apple G3 machine that can still run the new OS-X operating system. The screen is bright, the lines are sleek, and it has a very solid feel... both in its keyboard and in its overall construction.
You can hot-swap different modules (floppy, CD-ROM, DVD, Zip, batteries) in and out of the two bays on its side. Since the laptop has been discontinued, you can find some great module bargains on EBay!
Extra batteries are useful and you can get them at a reasonable price ($60), but be sure they can still hold a charge... since most of them are at least 3 years old! Many other accessories (Zip drives, floppy drives) for this laptop can be had for less than $10 on EBay.