wikipedia has solid lists of albums that came out in any given year (
2003 here).
i went with 2003 for the following:
meadowlands (the wrens)
absolution (muse)
deloused in the comatorium (mars volta)
hail to the theif (radiohead)
castaways and cutouts (the decembrists)
two conversations (appleseed cast)
the earth is not a cold dead place (explosions in the sky)
think tank (blur)
you forgot it in people (broken social scene)
probably forgot some. 2004 was a close second for me.