For an even more gentle introduction to Linux, get yourself a copy of one of the free VMWare Players and head over to the VMWare virtual appliance forums. Download a couple(or a bunch) of the appliances there. A Google search will turn up even more downloadable appliances.
VMWare will run the Linux of your choice in a window on your Windows box and let you poke at it. It’s a generic environment so you won’t be setting up your exact hardware, but it will let you test the different distro’s and get a good idea of which one you’d like. You can install software, reconfigure things, etc. If you get things just like you want them, you can copy the config files and re-use them on a full install.
You can set it up to not commit changes to the VM image, or you can keep a pristine backup of the VM(or both), so if you break things badly, it’s simply a matter of “powering off” in VMWare terms, or copying from your backup VM, and everything is undone. In other words, it gives you an “undo” while learning. I can’t state how useful this is. If you are curious about “what happens if I do this,” and you know you can easily undo mistakes, it makes you much less fearful of trying things out, and thus learning.
While it gives you the chance to try out Linux without partitioning or messing with your windows install at all, but keep in mind it is virtualization, and you’ll take a performance hit. You’ll need a fairly fast machine, or some patience, so make sure you take that into account. Just because it’s slow on VMWare does not mean it will be slow with a regular install.
Also, these VM’s are usually created by ordinary users, so quality can vary. I’ve run into some that just plain don’t work, and some that aren’t quite what I expected, and some that are perfect. I download more of the specialty application appliances for demos/testing, so YMMV.
Although it doesn’t work as of yet, iTunes is consistently ranked high on the list of desired applications at Codeweaver, so I’m guessing they are working on it. If all else fails, you can run a WinXP virtual appliance in Linux. Although I’ve never tried getting iTunes to update my iPod from a VM.
Some VMs:Ubuntu 6.10, Fedora 7 test 2, KDE3.5.5 on openSUSE 10.2