the simple answer is no single method will be ideal for all tools youll need a selection of methods for storage
trial and error will tell exactly what amount of what system will do it
you as said above will need to plan where you put things so they dont cause a hazard if you turn round ot move up sharply ect
rather than loads of holes get some strips of 12mmx25mm ply cut some 1" spacers from the ply
2parralel bits with a spacer every foot or so with a securing screw through at these points [so you now have a storage system 1.5 " wide]
this will allow tight storage for anything with a blade [chisels screwdrivers paint scrapers ect
in other areas you can install pairs of dowels slightly angled up to accomodate open ended spanners individualy or in half sets likewise a single dowel can be used for ring spanners circular blades or discs
here is some of the bulkier storage solutions in my shed
if you look above the big window there is a storage shelve using the triangular space normaly wasted the space below now has a shelve at the top of the window where the chargers are and the space between the 2 sockets now contains 3 chargers and 8 batteries
underneath the worktop is shelves to store boxed tool and battons to accomodate plastic boxes by the lip
the flip saw has storage underneath with a large tray on top to catch the sawdust and throw the offcuts in it can be 2/3 full and the saw will still flip[convert to chop saw mitre mode]
the small router thats mounted in the workmate has a box underneath for catching the dust it also now has a dw712 pull saw that lives there with 4 holes in the router table [board] for the rubber feet to locate in
the workshop is now more than 2 years old and modifications are taking place on a regular basis
the pictures are the summer before last so things are quite different although all structural components are the same or added to quite a bit of tweaking has taken place