This is how I play it, solo acoustic, bit of an amalgamation of various tabs and 
chord patterns out there...recommend watching the "bathroom session" version on 
the youtubes for a sense of rythm, not really happy with the end verse/chorus 
entry bit so comments appreciated.

Capo 3

Intro:
G Am7 Bm Am7 x2

Verses:
G   Am7    Bm7     Am7     G
    One day I will build a fountain
Am7            Bm7   Am7  G
     Drink and never grow old
G Am7       Bm     Am7 G
   Then I'll market an elixir
Am7        Bm        Am7        Em
 that will eliminate the common cold
                         Am7
Find your sickness on my list
Em                      Am7
Pay up front and make a wish

Chorus:
G         D/F#       Cadd9 A7
There's a lot I will never do
G       D/F#      Cadd9     A7
Some fantastic, I know it's true
G           D/F#      Cadd9    A7      Cadd9
But none as much as my want to be with you

Bridge/Outro:
G   D/F# Em7    A7
Bye-bye self-respect
G         D/F#           Em7       A7
I haven't had much of it since you left
G D/F#   Em7        A7   Cadd9
I missed out on the best of you