After a long time lurking, I've (like many others) finally taken the plunge and acquired most of the parts for my first router build. My plan is to be able to cut full sheets of MDF with a little wiggle room on each side. Because of the cost of materials and shipping (to Canada) I sadly decided against 8020 and have opted instead for a torsion box out of 3/4" MDF. Here's a shot of what I'm planning for the main base.