I have a aquaintence with an iBook they don't use. Their kid smashed the lcd display after about two months of use and they've let it sit unused instead of getting it fixed or hooking it up to an external monitor. I was thinking about taking it off their hands, but I want to know if there is a way to turn it into a tablet mac that I can use as a digital sketch book? What would be involved in doing this? Supplies, instructions and whatnot. It's not a very old iBook, they got it new last fall, it's low end, but workable.

Any ideas, suggestions would be greatly appreciated.
Thanks