That's a good start, I'd add the following (certainly not a comprehensive list):

Fire estinguisher
"X" shaped wheel lug wrench that fits your vehicle(s)
CB with good antenna
Set of combination wrenches, Metric, SAE or both as appropriate.
Set of good adjustable wrenches.
Visegrip-type pliers
Needle-nosed pilers
Lineman's pliers
Regular slip-joint pliers
Goosneck pliers
Assortment of flat and phillips screwdrivers
Torx drivers or other speciality tools needed to change headlights, etc. (I had to have a Torx driver to change the headlights on my old S-10 Blazer)
12V air pump
A can or two of "Fix-A-Flat"
Hammer (persuader)
Really big flat screwdirver (goes along with the hammer)

Note: I have a Chevy Avalanche, so storage spage is not an issue for me - your mileage may vary!

Stay Safe,

JimJr