Ic card

I'm travelling 2 days in Tokyo and 2 in Kyoto.
I want to buy an Ic card for Tokyo, but I do not understand whether it's valid on Kyoto buses too.
Is the Ic card valid for the monorail from Haneda to Tokyo?
Other question, which is the typical fare moving by Metro or train inside Tokyo?
I'd like to buy it at the airport and wonder which credit to buy
thanks
regards

I want to buy an Ic card for Tokyo, but I do not understand whether it's valid on Kyoto buses too.

Yes, it is. The basics are explained here:
http://www.japan-guide.com/e/e2359_003.html

Is the Ic card valid for the monorail from Haneda to Tokyo?

Yes.

Other question, which is the typical fare moving by Metro or train inside Tokyo?

Around 140-220 yen. You can look up specific fares here:
http://www.hyperdia.com/

thanks a lot for the clarifications

ciao