Please
I have spent more time troubleshooting the never-ending problems with Windows, than installing and learning Linux.
Once you LEARN linux, it's almost fool-proof. I've been running the same Linux system for four years, just with updated hardware profiling and with, of course, security updates.
The filesystem in linux is a HELL of a lot better (and you have almost eight GOOD choices currently) and therefore you never have to format the disk, or fragment it, because all files are organized in a straight line, and not clusters. Therefore, nothing needs "cleaning", per say.
Also, stability is much better. I have only had my Linux machine crash on me a couple of times due to faulty self-made sound drivers. I have never had it crash for no reason, unlike Mr. Gates' products.
Customization is the best part of Linux, however - the fact that you can do whatever you want with anything on the system, that you can fix it to exactly your liking. The power is amazing too, and I have never had a problem running a Windows game or program such as office (but why do that when a more functional Word Processor, Open Office, is available to Linux natively and for free?) in Linux by use of Cedega (aka WineX). Warcraft 3 runs amazingly well, so does Half Life 2.
It is worth it for now. Just live with your current primary source and sacrifice sound for a little while until E-MU gets its act together. They need to release source for their cards before ALSA can produce drivers for it.
By the way: Don't take the wussy way down the road and start with Fedora, Mandrake, or whatever - a fantastic newbie starting Linux distro is Debian. You learn while you install it, and you hardly get your hand held. You lean very quickly, I promise. Slackware is another alternative if you like being left out in the open with unorganized package structuring systems.
If you're pretty savy with computers already, just head down the Gentoo Linux path. You'll get every bit of info you'll ever need to install it (best install manual... EVER!) and you will learn how to use Linux then and THERE because the install is so perfectly-executed.
Best of luck to you and your BETTER computing days.