re: Seriously interested in learning Web Design

codeacademy.com is free, interactive, and a good jumping off point for beginners. Some of the lessons are a little wonky and ill-explained, but the HTML/CSS course is perfect for getting your feet wet.

To get some legit courses for anything past beginner, look at Teamtreehouse (front-end focused) or codeschool(a little bit more encompassing as it has Ruby, iOS, and Git courses). Both are paid subscription deals but worth it, especially for the interactivity.

Lynda is a good site for tutorials, and their library is huge and includes videos on just about anything you'd want to learn about. Pluralsight is also a good video based tutorial sight. If you have a .edu email address, you can sign up at Dreamspark.com and get a free 3-month membership to Pluralsight. You can also get Microsoft's Visual Studio for free. Pluralsight and Lynda don't quite have the interactivity that Treehouse and Codeschool have, but they provide exercise files and quality videos.

ETA: Teamtreehouse actually has a more extensive library than I originally thought. Here's the list of what they offer: LINK

Here's their web design track: LINK