I love everything Apple. I've pretty much lived my entire life surrounded by them. I love my MacBook, but when I want to work on a significant project (I am a videographer) I turn to my beautiful iMac G5 with its giant screen and hefty hardrive.
I've always had the newest iMacs and this one is very incredible. I like how their products are so compact, where the screen and the computer are the same piece. It certainly makes it a better fit in my small office. I also like that its a widescreen computer, because I am a filmaker and alot of what I shoot needs to look good in widescreen.
The apple iMac G5 comes with iMovie and iDVD which are great programs I use on an almost daily basis. Regardless of your experience with video software, these programs are easy to use and very effective. Some of the most important projects I edit for high profile clients are made using these simple programs!
The iMac G5 has a great big hardrive which is why it is so useful for me. i sometimes need to import hours of footage, which can be ten's of GigaBytes...and my computer does it easily! I love my iMac G5 and I certainly recommend it!