If your are considering buying an iBook Clamshell, I would try to get hold of one of the Graphite or Lime G3/466 SE (Special Edition Clamshells) first. These models have the highest spec of the range (466 MHz processors) and are the only models that have DVD-ROM drives, if you don't need to play dvds then the indigo model is a good choice.

All the later models can be officially fitted with a maximum of 320MB of RAM, though it has been reported that they can unofficially support 512MB of RAM, Clamshell memory can be purchased from Crucial.

Apple Clamshell iBooks for sale on eBay



Apple iBook Clamshell G3 BOXED 60GB HD 544 RAM ORIGINAL 99 + PLENTY of GIFTS Apple iBook Clamshell G3 BOXED 60GB HD 544 RAM ORIGINAL 99 + PLENTY of GIFTS
£693.51
Time Remaining: 26d 20h 57m
Buy It Now for only: £693.51

iBook G3 Clamshell Apple PowerBook 21 M2453 Blueberry 300MHz 192MB Ram 6GB HDD iBook G3 Clamshell Apple PowerBook 21 M2453 Blueberry 300MHz 192MB Ram 6GB HDD
£71.29
Time Remaining: 9d 21h 36m
Buy It Now for only: £71.29

Apple iBook Clamshell Laptop Power PC G3 FULL SCREEN ENCLOSURE  CABLES TESTED Apple iBook Clamshell Laptop Power PC G3 FULL SCREEN ENCLOSURE CABLES TESTED
£21.95
Time Remaining: 19d 11h 17m
Buy It Now for only: £21.95

Apple iBook Clamshell Special PINK FLAMINGO + 60 GB HD + OS9 Limited SERIES Apple iBook Clamshell Special PINK FLAMINGO + 60 GB HD + OS9 Limited SERIES
£205.28
Time Remaining: 14d 17h 18m
Buy It Now for only: £205.28

Apple iBook G3 Clamshell SPECIAL 366 MHz + LARGE 60GB HD + GIFTS  M6411 Wow Apple iBook G3 Clamshell SPECIAL 366 MHz + LARGE 60GB HD + GIFTS M6411 Wow
£225.89
Time Remaining: 13d 19h 8m
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Apple iBook G3 Clamshell SEE THRU + 40GB HD Dual OS + LOADED of Gifts + CLEAN Apple iBook G3 Clamshell SEE THRU + 40GB HD Dual OS + LOADED of Gifts + CLEAN
£202.11
Time Remaining: 11d 19h 31m
Buy It Now for only: £202.11