First see:
http://www.zebulon.org.uk/
Set up the URPMI sources as indicated.
Voila, everything on the powerpack is available to you except those package demos and programs that you would otherwise have to pay for.
If you set up the PLF sources you'll also get programs which cannot be included on the powerpack such as the libraries to view encrypted DVD's in Linux.
Once you have set up the sources click on "Install Software" to bring up the urpmi gui.
You'll have a rather amazing assortment of great software available to you.