Take a look at Linux Mint 6 (Main Edition) its easy to install easy to use and has much of the software you are likely to need preinstalled.
Install it or RUN IT LIVE !
Linux Mint 6 Release notes
http://www.linuxmint.com/rel_felicia.php
Linux Mint 6 Download
http://www.linuxmint.com/edition.php?id=31
Linux Mint 6 installation tutorial (if you like it)
http://www.howtoforge.com/the-perfect-desktop-linux-mint-6-felicia
You download the ISO. image of Linux Mint 6 then you need to create a Bootable CD from the ISO. This can easily be done using Nero Burning ROM or similar software. Linux Mint 6 can also be run straight from the LiveCD you have created without touching your Hard Drive.
Screenshot of my custom LiveDVD of Mint 6 running Beryl 0.2.1
http://s266.photobucket.com/albums/ii256/Linux_Ubuntu_geek/?action=view¤t=Screenshot-1.png
Remember you can RUN IT LIVE !
LUg.