I have a lot of experience with HTML, CSS, PHP, and MySQL but none whatsoever in CMS's. I am starting a web design website and I would like to use a CMS that I can customize easily, that has a wonderful template system (easy to custom theme)... It needs to have speed since I will be hosting it on my free account instead of my paid account since it's limited to 0 add on domains and my blog occupies it. What would you suggest? Also, if you have any resources that would help me get started themeing the one you chose? Thanks much in advance!