This is Sweethearts by Jonathan Lewis available through 20x200.com for $50
There are these really great photographers online who sell their work super inexpensively - case in point this girl who has a website abbytrysagain.com - this print (and lots of other ethereal goodness) is available in original film prints for $7. $7 people! Amazing
Green with Envy, by the same woman who started the Keep Calm and Carry on craze. sfgirlbybay on Etsy - this print available for $16.
Art print by Lisa Congdon at Lisacongdon.com - available for only $35
Cool prints from Orkposters.com show a city in it's graphical neighborhoods. Super cool for $35
More cool band posters and other silk screened art at headsofstate.com - most about $35.
I love so many on this website, I'd have a really hard time choosing - and only $10.99! Theposterlist.com
Green Bird by Kareem Rizk - from thumbtack press.com - $49 on a stretched canvas frame.