tgynther: the problems with DVD±RW playback aren't with Toast, but with the DVD players. Whether you burn with DVD Studio Pro, iDVD, Nero or any DVD/VCD burning program doesn't make a difference. Generally, Sony and Panasonic DVD players will play back burned DVDs (+ & -, R & RW), and Toshibas won't.
This is a compatibility list:
http://www.dvdrhelp.com/dvdplayers
My eMac is noisy because the wall behind it reflects the noise. I was thinking of getting some of that sound-deadening foam you see in recording studios. However, it doesn't bother anyone else in the house and I'm probably the only one who notices it. I have an iBook but it's a G3... of course your question is whether to get a new G4 iBook or an eMac...
evil is right - if you need portability get the iBook but if you need power, get the eMac. You might be more comfortable using a full size keyboard and a real mouse... of course you could buy a keyboard and mouse to connect to the iBook, but they're included in the eMac.
screen size / display resolution:
iBook: 1024x768 | eMac: 1280x960
advantage, eMac
built-in speakers:
iBook: tiny and cruddy | eMac: nice and decent
advantage, eMac
processing power:
iBook: 800MHz G4 (the one tgynther is comparing) | eMac: 1GHz G4
advantage, eMac
video card:
iBook: Radeon 9200 32MB | eMac: Radeon 7500 32 MB
advantage, iBook
weight:
iBook: ~5 lbs. | eMac: ~50 lbs.
advantage, draw (depends on your priorities)
audio line in:
iBook: no | eMac: yes
advantage, eMac
FW, USB ports
iBook: 1, 2 | eMac: 2, 5 (3 USB connections available once the keyboard and mouse are connected)
advantage, eMac
The 25% processor-power advantage of the eMac will make a HUGE difference, considering you want to edit video. My eMac is 700MHz, and my final renders (applying the broadcast safe and color correction filters) take 12-14 hours for a 60 minute video, and my MPEG2 encodings take a similar amount of time (2-pass VBR).