Have you heard of Zatista.com yet? It's a great source for original and affordable artwork. Here's a few of my favorites from their Under $250 section:
(1) Yipes Stripes painting, oil on canvas $70; (2) Wise Math Print, digital on paper $35; (3) Sunrise Over the Peninsula painting, oil on wood panel $150; (4) You Should Think On painting, acrylic on canvas $250; (5) Scattered Light painting, oil $250; (6) Quiet on the Lake painting, acrylic on canvas $125 (7) Viola painting, acrylic on canvas $125; (8) Summer Roses painting, oil on wood panel $175