Great recommendations -
That special brake tool is available as a universal one (looks like about a 1/2 or 3/4 inch square cube with different points on each side for different manufacturer's brakes). It's a 3/8" drive tool and sells for between 5 and 10 bucks at Pep Boys and other auto stores.
I second (third, fourth, etc.) the endorsement of PB Blaster. That stuff is awesome. A can of brake clean spray is good also for cleaning the grease, mud, etc. off your brake parts after an emergency repair.
Finally, in case nobody mentioned it, a supply of cotter pins because you know you're going to break or lose them when you're dismantling the axles.