nothing wrong with clickers ( im a clicker working on converting to keybinds ) and i hold my own in pvp and in pve :P
hehe, it just wouldn't really work for me in 2400 arena (please ignore the not so subtle epeen flexing) when i have to keep full rounds of dots up on 3 people.. while keeping my pet alive and dispelling my group out of sheeps..spell locking shattercombo's and manaburns... while running away from a rogue or warrior that is madly trying to dryhump my leg =(.
My point is.. clicking + moving + changing targets is usually a lot slower than moving+pressing keybinds with your keyboard while using your mouse to change targets, control your camera and strafe.
Since clicking spell icons, controlling your camera, and clicking on nasty horde (or alliance) all require the use of a mouse and it's impossible to have your cursor in 3 places at once.
p.s. - you saw the Athene videos didn't you! that's why you're converting, amirite!?
p3lim, try Ubuntu, Fedora Core whatever number they're at, Gentoo is very good - but less newcomer friendly. If you wanna go really droolworthy, Arch, Debian, ... Oh there's so many distro's.. (http://www.distrowatch.com take a look at most of those.)