Installing PlanetCCRMA on your PC is not quite a labor of love, but it does take some attention. Most are coming to this process with a Windows Installation currently on their PC, so we'll take that assumption here. Questions?
You can have both Windows and Linux installed on your system using a technique called Dual Boot, which means at boot time you can choose which operating system you boot into.
Backup Your Data
You must have a backup of your data! What kind? The answer to this question will do it... "To what extent should I backup my data such that if I lose my current partition and my data is lost, will I not have an emotional reaction?" The answer to this question and what you choose to do about it is entirely your responsibility.
Here are some helpful links for Windows users:
Establish a Disk Partition
You will also need ~10Gb of unpartitioned free space. If you have only a single Windows partition on your PC, this may mean that you will need to resize this partition to make this free space. You can do this in one of two ways:
You can download this ISO Image, make your own LiveCD, and make the partition adjustments or we have several LiveCD's in SysAdmin that you can borrow and use. We can help you, too.
Partition Magic (not free)
If you want to get this going on your own, you can visit this page:
This page will walk you through how to install PlanetCCRMA. The first step is to install Fedora Linux on your system then PlanetCCRMA-lize it.
Julius Smith had this experience with his HP.
Users at PlanetCCRMA
An old but still resourceful linux at PlanetCCRMA survival guide: 
Once you are done with the PlanetCCRMA-lization process, you might want to consider installing EasyLife on your Fedora system (http://easylifeproject.org). It's simply a package that install and configures some software on your system in a "nice" way (especially recommended for new Linux users). Examples of what it adds automatically to your system: mp3 support, Flash player plugin, Skype, additional fonts, Java plugin for Firefox, etc. You can of course choose which ones you will allow EasyLife to install or not.