Bit generic topic, but here is a bit more specific information: I use a computer for several things: Encoding video Server for video I watch on my TV through my Xbox 360 Internet browsing Writing - LOTS of writing Converting golden age comics Light video editing Presentation creation I like to multitask (do a good bit of other stuff and want it to encode without hogging all the comps resources and slowing me down). I had been doing all these things on a Pentium 4 3GHz. I have not been real satisfied with the computer for the last several on the as I have gotten into more HD video and this was a slow chore on the old girl. As long as my computer can do what I want I am not concerned with the latest and greatest. My most demanding activity is the video encoding. Currently I am using Vuze to watch videos on the Xbox 360 (it is faster easier than media player) Is anyone using the Mac version to do this? Also I read some information about .avi files that sounded good. I'd like simplicity, solid build quality, (I love the iMac Design), and reliability. I was rock solid for years with XP - Vista changed all that for the worse.