I'm loving the Westalee templates! I just did a demo on them Saturday.
Some of the ladies are using the Teflon baking sheets to give your table a slick surface. I think they're bigger, and a lot less expensive than the ones made specifically for quilting.
I order from Sew Steady for the store where I work. They usually take less than 2 weeks for the tables to be delivered. We only sell the 18" X 24". The Deluxe and Wish tables would be great if you've got the money.
When you order a cabinet, the "insert" is custom made to fit snugly around your machine, and is included in the price. However, not all cabinets are big enough to hold the bigger machines.