Check out this video of my poker table I built



Also, here are the plans I drew up if you want to make it the same size (that way you don't have to use the ellipse formula to know where to put the screws for the focal points)  That took a lot of time for me to figure out the shape of the table as there are not any websites for building an elliptical poker table.  Also, buildyourownpokertables.com has a lot of useful step by step info.