You should look at the "sew perfect table". Although there are 3 models to choose from, there is one made specifically for Janome....it is called the J table. The cool think about these tables is that they are height adjustable...which is nice for us short folk, that is why I am about to purchase one - to get my sewing level lower so that I am more comfortable. I bought the gidget I table for $60 the day after Thanksgiving at Joann's - great sale and coupons. It is a very nice table, but it is too high for me.
Here are some links you can check out...
http://sewperfecttables.com/sewing-table-6500.shtml
http://www.quiltingboard.com/picture...le-t18039.html
http://www.quiltingboard.com/main-f1...le-t22947.html
http://www.quiltingboard.com/main-f1...e-t168250.html
http://www.quiltingboard.com/picture...m-t177716.html