I myself am thinking to switch over after newyear.
I'm not sure if i wold buy an 14" iBook, although i like how they look.
The bad thing for me is, that iBook doesn't have a (standard) option to link an external screen up (and than use that one as your main monitor).
That's why i'm looking into the 15" Powerbook probably.
Anless i get lucky and am able to buy a G5 with tft... but i don't think i can bring u that money.
I'm also waiting till newyear, cause i hope they will again upgrade all the hardware and maybe even new G5 powerbooks... but that's just a hope off course
As for the iBook itself, i think it's an amazing machine but i feel they are hanging on the edge of present requirements to play games well (buy one now, and next year the graphic card will be outdated).