2ndGradeTeacherAZ:
Welcome to Apple Discussions.
Is it recommended to upgrade the RAM, as well?
Your profile does not tell us how much RAM you have in your computer. However unless you have maxxed out your RAM that is a good place to begin. Your computer has 512 MB of logic board RAM and 1 - PC2700 DDR333 200-pin SO-DIMM slot which can be upgraded with up to a 1 GB module for a total of 1.5 GB RAM. You will find a list of popular brands with prices at
ramseeker.
the largest hard drive available is 250GB from Western Digital. Does anyone have experience with that hard drive to let me know if it's worth it?
Whether it is worth it or not depends on your particular needs. Some who have installed this drive report a continuous ticking, which, although it does not seem to interfere with the drives functionality, can be a source of distraction or annoyance. If you need that much storage capacity, however, it could be a good investment for you.
I'm nervous about taking it apart on my own, but I desperately need a bigger hard drive.
Hard Drive removal and installation in the iBook is not for the faint hearted. Unfortunately ifixit does not include instructions for the iBook you have, the G4 1.42 GHz. I suggest that you might be well advised to get some expert help doing it.
If I have missed anything, or if you have further questions, please don't hesitate to ask.
Good luck.
cornelius