Using the CTRL and ALT bars, that's 30 skills. Then, if you have a number pad, like I do, you can assign a bar to that. That's 40 abilities. My keyboard also has additional shortcut buttons on the left side which I have for my greetings Macros. I have my main 30 for combat related stuff and the number pad for emotes, target indicators, etc. I also use a Razor Naga 12 Number button mouse so I can usually reach all skills without every actually moving my hands off WASD