These are the chords Cameron uses. The end chorus has finger plucking that I didn't put 
here. But this is the video you can get it from if you watch closley.
http://www.youtube.com/watch?v=cUhlAtVCovo

No capo.

Chords used-
G - 320033
Cadd9 - x32033
Lets call this 'X' (not sure of the chord name)- 200033
D- xx0232
Em7 - x22033
A7Sus4 - 002033

Intro-
G, X, Cadd9, G, X, Cadd9

Verse-

G (320003@1)                   X
You dropped your coat by the door
Cadd9 (x32030@1)                          GI (320003@1)ran outside to watch you drive away
X    Cadd9
From me
GAnd (320003@1)in my eyes
X
They won't believe
Cadd9 (x32030@1)                          GX (320003@1)Cadd9My (x32030@1)heart is trying desperately to beat
D (xx0232@1)                           Cadd9And (x32030@1)lately I'm speeding up my breathing
D (xx0232@1)                              Cadd9My (x32030@1)hands are shaking all the time

Chorus-

Em7            Cadd9 (x32030@1)       G (320003@1) D'Cause (xx0232@1)I don't wanna let you go
Em7              Cadd9 (x32030@1)      G (320003@1)    DI (xx0232@1)can't sleep or breathe when I'm alone
Em7                Cadd9 (x32030@1) G (320003@1) DIf (xx0232@1)I could just go back in time
A7Sus4
I wouldn't make the same mistakes
           Cadd9 (x32030@1)              G (320003@1)X  Cadd9 (x32030@1)name="chord_320003@1">G X Cadd9If (x32030@1)I could just go back in time

Verse 2-

G (320003@1)         X
Looking at what we wrote
   Cadd9
In old postcards
                 G (320003@1)    X    Cadd9 (x32030@1)GAnd (320003@1)counting the times you'd repeat yourself
           X
And I just wanna hold
Cadd9 (x32030@1)          GYou (320003@1)know I just, I just can't let you go
X             Cadd9[I (x32030@1)just can't let you go...]

Chorus-

Em7            Cadd9 (x32030@1)       G (320003@1) D'Cause (xx0232@1)I don't wanna let you go
Em7              Cadd9 (x32030@1)      G (320003@1)    DI (xx0232@1)can't sleep or breathe when I'm alone
Em7                Cadd9 (x32030@1) G (320003@1) DIf (xx0232@1)I could just go back in time
A7Sus4
I wouldn't make the same mistakes
           Cadd9If (x32030@1)I could just go back in time

(x4)
           A7Sus4                            Cadd9I (x32030@1)wouldn't make the same mistakes if I could just go back in time