I had a need for a router table stand as well as a table saw stand at the same time.  So naturally I thought of making one that could do both but also store the tool not in use. 

I also needed it to be sturdy when needed and mobile when needed, but I don't really like most locking casters.  Then my brother told me about the Rockler Casters that could flip out of the way when not in use.  They did the job great!

This is showing it with the table saw up.  I made sure to make the sides low enough so the fence can extend over the top and I ended up using tight bungee chords to hold the saw in place so changing between the table saw and router table was quick!