I just downloaded Linux Mint, one of around 300 active Linux distributions, onto a Live CD which I can boot from. I played with it, and really love it. I think that Linux is a fine and dandy OS. The first time I used it, I went like lightning. It did go a bit slower the second time, because I tried to download a bunch of stuff from the built-in package manager, even though it was running on a DVD.
I had to plug it directly into my Internet, and when I did, bang! Firefox was the fastest I’ve ever seen it. On my first run-through, I also played music directly from my Windows drive, which was great.
I’ll post screenshots in the future. You can download Linux Mint at http://linuxmint.com/.