Over time I grew attached to this specific distro of linux. It is based off of Ubuntu/Debian. I found it to actually run faster than Windows 8.1! I highly recommend people make the switch to this especially if all you do is browse the web, listen to music, play videos, and work with documents. On top of that, you do not have to worry about viruses! You can even actually get some windows programs to run if you want to play specific games all you have to do is install and use wine. More information about LinuxMint is here http://www.linuxmint.com/
Also the directory of the iso files is here http://www.linuxmint.com/release.php?id=23
For creating a bootable usb I recommend yumi. Get it here http://www.pendrivelinux.com/downloads/YUMI/YUMI-188.8.131.52.exe
For creating a bootable dvd disk I recommend imgburn. Get it here.