Tom Petty - Something Good Coming chords

Hi,

This is my first try of working out a song so forgive me if its wrong. G i`m not 
to sure about and for the chorus it uses maybe an A chord but not sure 
so just play around with it. 

Intro (Also verse)
Em C G D
I'm watching the water*
Watching the coast
Suddenly I know
What I want the most
Em C G D
And I want to tell you
Still I hold back
I need some time
Get my life on track
[ Tab from: http://www.guitaretab.com/t/tom-petty/230670.html ]
I know that look on your face
But there's somethin' lucky about this place
And there's somethin' good comin'
For you and me
Somethin' good comin'
There has to be
Em C G D
And I'm thinking 'bout mama
And about the kids
And the way we lived
And the things we did
Em C G D
How she never had a chance
Never caught a break
And how we pay for our big mistakes

I know so well the look on your face
And there's somethin' lucky about this place
There's somethin' good comin'
Just over the hill
Somethin' good comin'
I know it will
Em C G D
And I'm in for the long run
Wherever it goes
Ridin' the river
Wherever it goes
Em C G D
And I'm an honest man
Work's all I know
You take that away
Don't know where to go

And I know that look that's on your face
There's somethin' lucky about this place
There's somethin' good comin'
For you and me
Somethin' good comin'
There has to be