I had this problem when I lived in an apartment in college and got my Linn. Linn recommended a Sound Organization table - light and rigid. (Being light and rigid, the natural frequency of the table is high and it is less prone to footfall.) Since I couldn't afford one at the time, Linn recommended a parsons table (sp?). These are those old low, square plastic tables with the four square legs that just push into the table. Many people used them outdoors. I finally got hold of one of them and the footfall problems were history. More recently, I have also heard that the Ikea Lack side table is now recommended by Linn and it costs $12. Since then, I managed to buy SO table and it works great..