Field box?
Whirley Bird:
From what you described that Ultimate Field Box will be just right for you, plus its hard to beat at $30 (its much smaller than the metal tool boxes around).
Like I stated, I have the Hangar 9 tote box (bought it new for $10). I usually only carry the items necessary to get airborne and leave everything else in my car (read thats about half of what you carry).
Go check it out at Home Depot and see...