The $910 is the value it costs in my country converted to dollars. If I'd to buy these here I'd spend R$ 1.800 or approximately $910.
If I'd buy from the links you sent I'd have to pay 50% importation tax. So It would be $445 + $222 = $668. Its cheaper but still a little too much I guess. + 2 or 3 months to arrive... I really sucks to live here when it comes to buying these kinda stuff. I like the alternative.
I really can't ask you to solve all my problems haha I guess you already helped me all you can. And you probably had enough of me right?
Thank you for all the information! I really appreciate it.
Two last things before closing the thread.
Headphones before sound card for sure?
And are you like god mode on games with your set? :]