I like the idea of casters on the big tools! Also, you expand to the space available! Remember to mark out the space for your car and don't violate it! A dust collection system would also be a good idea! My new shop is 60'x30' and We are still unloading! Inherited a pool table and football table, as well as some cabinets, benches, and shelves! Will be watching for ideas! Like Eric, it will be a multi use space!
Hawkdancer