I second connietoo's recommendation for the SewEzi table. It is wonderful when set up at home (and you can get an insert that fits every machine your own and just put the right one in for the machine you want to use). AND, it folds and rolls so you can take it to classes and retreats or hide it away when you must return your sewing room to guest room in my case.
If you get it at a big show where they vend you can usually get free shipping.