Sotheby’s has a van Gogh for May:

Van Gogh completed this work in 1888 during his fabled Arles-period, when he created many of his most celebrated compositions: Sunflowers, Self-Portrait, L’Arlesienne and the Night Café all date to this stage of his career. The painting also serves as lasting evidence of the artist’s relationship with Paul Gauguin – the two worked side-by-side in France that autumn under their shared artistic experiment known as the Studio of the South, before mounting tensions eventually drove Van Gogh to his violent breakdown at the end of the year. L’Allée des Alyscamps is estimated to achieve in excess of $40 million in the May auction.