I have a white Ikea GALANT left corner tabletop (http://www.ikea.com/us/en/catalog/products/S09856324/) for sale, along with a frame attachment/T-leg for the corner segment only. This is an incredible desk with a very generous amount of working space - I'm only selling it because I had to downsize to a smaller desk when I moved into a new apartment.

IMPORTANT NOTE: you would have to purchase a frame (such as the one that goes with http://www.ikea.com/us/en/catalog/products/S79847779/#/S59856326) and two T-legs in order to use this desk. Even so, you would save around $100 for this great desk through this deal rather than buying the tabletop and the corner frame extension/T-leg brand new.