I have had the same 20" iMac for approximately one year.  Where to begin?  I had always used Windows before getting this computer, but I had had so many problems both with Windows, and the computers that I had run it on, that I wanted to make a switch.

At the time, I was working towards a graduate degree, so one of the biggest requirements for me was that it would be able to run the software that I needed for my degree: MATLAB, Microsoft Office, plus the usual email.  I also wanted to have my music and budget software for personal use, and a couple of games thrown in the mix.

Virtually every...