In the first post, I threw in two sites for guides, hero details, builds etc.
Useful stuff.
I thought it would be pretty straight forward that if a champion was attack speed based then you could buy from the attack speed section, shopping from the recommend section or just making your own build was good.
Oh, oh, is there any way to sell your heroes? Because I want Kassadin too bad and I'm getting bored of Amumu and Twisted Fate.
Unfortunately, no, I suggest you just blow like 30$ on this game and you can buy the champions bundle and it comes with 20 really good champions, mostly 3150 ones and 6300.