I recently learnt that the famous Excel Blogger Chandoo has a new initiative. He set up an Excel School.
http://chandoo.org/wp/excel-school/
This guy is an Excel MVP but his style is what makes the difference. He's light, simple clear and to the point.
If I needed some Excel training, chandoo.org is a place I'd consider.

I'm not affiliated with Chandoo.org, this is simply my opinion, based on what I read on the site.