http://www.ebay.com/itm/OUR-LADY-PEACE- ... 2c988216b1Not sure how much you're looking to spend. Looks like $34 bidding price or $50 buy it now for one of my favorite spiritual machines posters at the link above.
I had entered a contest where OLP asked their fans to write their best concert experience. I was one of the winners and won a Clumsy poster by the same artist. I really wanted the SM one, but can't complain too much... free olp is free olp. Too expensive for my taste, but if you're looking for some decent decour, this poster is a pretty awesome piece of art.