You need three monitors so you can play DoTA, HoSK, and demigod at the same time!
By the way, if you want something refreshing try HoSK. It's basically DoTa, but you build your own hero. There's a large selection of heros much like dota, each with unique specials (you actually get to pick two from a list of 6+). However, all the hero's other abilities are chosen by you from a massive pool of abilities anyone can pick from.
And while each hero has a main stat, you can also choose your hero's stat growth. It leads to amazing games where creative minds make some darn interesting heros.
I loved the game to death and it's getting to be really popular. Well, it was last I played. I personally think it's better than DoTA. I'm still happily playing Demigod, but while you're waiting I would suggest giving HoSK (Hand of Sorrowful Knight) a try.