I'll fourth, or fifth, the making a simple table first, my first table made with scraps of wood for the base and a small 18" x 20" scrap of countertop I found in a shed after we purchased our house. Now I am building a big fancy-schmancy Norm-like table that I will be keeping in my Dad's shop. There is nothing like trying to route long pieces, form tenons, cut grooves and mortices, etc. to show you exactly where your current table is lacking or not. Good luck.