If you're looking to get into the design side, then a course in graphic design would give you training in the fundamentals you'll be dealing with day to day, but i'm not going to start a debate here about whether design is something that can be taught or not, just pointing out that as "web design" matures each of us are getting more distinct roles to play.
Programming / markup + css are all technical skills and can be easily picked up if you're that way inclined. These can all be taught via courses, but I learned programming on my Computing Science degree and picked up the xhtml/css/standards stuff from reading online and just practising a lot.
One thing to bear in mind, and something i'm going through just now, is that no matter how good your technical knowledge, you'll still have a shitload to learn about actually working in the industry - working within a team environment, eliciting requirements, creating documentation, how to deal with clients .. the list goes on and on. That side of things is easy to forget, but just look at any job adverts in the industry and you'll see how much the decent-paying positions at good companies value experience.
Not sure if that really makes anything any clearer for you, but i'm sure others will add stuff i've missed.
Edit - Oh, and as for the "WOW Academy", just looking at their website is enough for me to say without any doubt that you'll learn fuck all useful from someone like them. The design is awful and the code looks like it was last updated around five years ago. Nearly all of their courses you could learn the same just from looking online or buying a few books.