Timely article indeed. I’ve been playing with the shop layout tool on Grizzly’s website (http://www.grizzly.com/workshopplanner) which helps you see how tools fit in a specific shop size. However, your insight and experience really helps with ergonomic considerations. When I first built my shop, the first thing I did was installing a wall mounted work bench – as my fore fathers had all done – Big Mistake! Soon-to-be project: ripping it out and building a mobile work bench on wheels (like the one you have pictured).
This is a fundamental question. A good place to start is with a survey of your property. Most municipalities have a maximum percentage of your lot that you can build on and standard setbacks from your property lines that you will need to adhere to without needing to request special permission to build. On a photocopy of your survey you can draw in what your local setbacks are in order to define the location within which you will be permitted to build. In a best-case scenario, you will have the space to build without compromising too much on space or location; otherwise, you may need to request a minor variance, which would allow you to circumvent an obstacle such as a setback.
Unless you’re a big fan of frequent shop remodeling, planning the layout of your workshop early in its development will save you a lot of time and trouble and also can keep you from spending years in an uncomfortable, poorly organized space. And if you already work in a shop that’s as organized as a trailer park after a tornado, careful planning and a little remodeling is likely to help you make a quantum leap.