Heh. I'm still running my G3 Lombard, though I have said goodbye to its 750 in preference to a 7410. I had it running Tiger before that though. Ran well enough for an old 333MHz with 512MB of slow RAM.
The clamshells ALL used a 12.1" 800x600 LCD. The earlier ones had 4MB VRAM, the later ones had 8MB. Makes no odds though, the white iBooks will have different display cables. You're going to be out of luck on the screen front I'm afraid.