I wanted to see Linux in action in 64 bits. It seems there are only a few choices, Ubuntu and Debian were the only distributions I found using 64 bit software. I thought I would give Debian a go first planning on installing Ubuntu afterwards. More here
Selecting ‘Getting Debian’ brought me to a page of download and installation options. I chose to download the small image file and copy it off to cd. This option downloads and installs most needed programs via internet connection. One caveat about this install, it does not support a wireless connection for the install.