I'm thinking that it may be time to start thinking about getting a new Mac and I'd appreciate some feedback. I have a 12" 800 MHz G4 iBook with 640 MB RAM and a 40 GB hard drive (my first Mac). It's about three years and a month old. Everything is still working great, but I think it may be time for some more speed. For many of the things that I do (email, web, Office, iTunes, etc), what I have now is fine. Having had the chance to use some of the new iMacs at my college, I don't notice much of a difference in speed for things like that. But videos are SLOW on the iBook. Video conversion, for instance, takes so long that I rarely even do it. Lately, I've downloaded some high def video clips that I wasn't able to really play. I'm reluctant to upgrade because the computer is perfectly acceptible in many areas. As time passes, I'm sure I'll be using my computer for videos more and more, so I'll likely want to upgrade at some point. The ability to run Windows, getting USB 2.0 ports and things like that would be convient. Is this a good time? It looks like I can still get decent return on the iBook on eBay and there are plenty of good deals on refurbished Macs. Thanks!