i didnt see you post the spec of that machine?, ram, cd or dvd (is it bootable from the bios), hd size, usb1 or usb2 ports, gfx card installed etc.
as has already been said, you takes your choice and try it, but for an absolute beginner you cant do better than ubuntu today for beginner forums and simple copy&past tutorials on many threads , start here
http://www.ubuntuforums.org/
slax is also a very good self contained package in that you can just download the apps you want to try and have them just work , you can easly make your own livecd as you wish and even create them from inside your windows OS if you so wish.
http://www.slax.org/
http://www.slax.org/forum/viewtopic.php?t=12744
http://www.slax.org/forum/faq.php
myslax creator for making your custom slax livecd from windows OS
http://myslax.bonsonno.org/screenshots.php
simply download the ready made modules you want from here
http://www.slax.org/modules.php
place them in the right dirs and make your livecd, burn&boot, or load into vmware or the windows compile of qemu.
http://www.h7.dion.ne.jp/~qemu-win/
great for the beginner in *nix but good with windows OS.
the other option for people that have fast windows boxs with lots of drive space and ram is installing VMWare player and grabbing any No. of ready made and runnable *nix drive images to see what suits your needs/wants.
http://www.vmware.com/
http://www.vmware.com/support/ws55/d...ols_linux.html
http://www.vmware.com/community/index.jspa
heres a vast amount of pre-made images that you can load into the player and just learn/use and play without worrying about destroying real harddrives.
http://www.vmware.com/vmtn/appliances/index.html
if you intend to use the shell/cli a lot then this cribsheet might be useful
http://www.pixelbeat.org/cmdline.html
http://www.suseblog.com/?p=141
"Linux Rants
[Tips, tricks, how-tos, opinions, and news regarding SUSE
July 31, 2006
The Easiest Linux Guide You’ll Ever Read - an introduction to Linux for Windows users” - a book by Scott Morris"
whatever your choice i'd advise you install 2 very useful filemanager apps ,
mc for the shell, and
worker for the GUI.
both of these are available in ubuntu after you edit the apt-get file and uncomment the universe entrys and run
sudo apt-get update
sudo apt-get install mc
sudo apt-get install worker