I'm in the market for a new laptop to replace my rapidly aging iBook G4. In general, I'm a fairly typical user, a lot of word-processing, excel, email, web browsing, etc, but no serious gaming or videoediting. However, I do a lot of videoconferencing through a few different programs, so I need a computer that can really handle it. I also often need to have a few programs running in the background during a videoconference, and on my current iBook, doing all of this at once slows me down to a crawl. Do I need the power of an MB Pro to effectively videoconference (and does the fact that is has better graphiscs performance make a difference in doing so?) or will I be satisfied with a MacBook?