PowerBook 540C. I used to dream about that machine, and even now, I'd love to get my hands on one. Such a groundbreaking design.
I am in search of the ultra-rare PowerBook 550c. Supposedly Apple only made these for the Japanese market. They are like a 540c except they are all-black (not grey), they have a 10.4" active matrix screen (larger than the 540c's 9.5"), and they have a full 66/33MHz 68040 processor (not the slower 68LC040 in the 540c). They also come with the PC card cage built-in, I believe. They are super hard to find, and in the 12 years I have been on eBay I have only seen one up for auction, ever. Here are some photos:



(see the Japanese characters on the keyboard??)