I just grabbed an iBook last week. I like it a lot. Unfortunately, I got burned with a bad third party RAM, so I'm a teeny bit sour from that, but I can't blame the iBook.
Just make sure you get more RAM, preferably the full 512 extra for $100 give or take online (crucial.com is a name that comes up a lot).
I have found the iBook 12" to be a surprisingly decent machine. It's not goint to win any speed race, but for general purpose computing, it really does OK. I'm editing some on-the-road video now with only 256 RAM since I'm waiting on a new 512.
The entry price point is great on the 12" iBook at $1099. Of course, you can easily drop a lot more money over time (airport card, base station, carrying case, extra RAM, bluetooth connection, wireless keyboard/mouse, iSight, the list goes on and on...) But at least you can buy what you need or want as you feel.
If you said Maya, Photoshop and Final Cut Pro were your main apps, I'd say you've got to drop some more money and get the big box. But since you say word,pics,music and surfing you'll be fine. I would definitely recommend it if portability is more important than performance and having a SuperDrive.