I can't remember if I mentioned this to you already, but I strongly recommend checking out "The Art Department" that is run by the folks at conceptart.org.
http://www.theartdepartment.org/Or, if that's a BIT too ambitious, and you want to just start out slowly, check out the streaming classes from the same folks at conceptart.org:
http://www.conceptartstore.com/stcl.htmlThe "Colours and the Theory of Light" class (which is at a great price right now) is one that I attended when it first happened, and it was SO GOOD. Oh, and "Anatomy for Artists" with Vandruff was !@#!%#@ awesome. Off course, when I took them they were live, so you could ask questions, but just watching the recorded class will still be invaluable.
I also took a great composition class from them, but I don't see it on that list. ...oh, that's because it got moved to an actual download, rather than streaming:
http://media.massiveblack.com/downloads.htmlLook for "Jason Manley's composition". Jason Manley also did the color class I attended.
Those three classes...anatomy, color, and composition, would make a really great cornerstone for getting better at illustration. And it's dirt cheap right now. The only downside is that you can't interact with people in person, but then again, you can do it at your own time and no need to submit a portfolio.
What I liked about the above is also that these are people that embrace the world of art that tells stories...they aren't going to turn up their noses because you like "that fantasy stuff". This is their bread and butter. So no fluff, just the good stuff.
And yes, they need to pay me now for doing their advertising. *laugh*