If the car has high miles, I would buy a brake parts kit for your vehicle. It has all new springs and stuff to replace the old ones. I typically use one can of brake cleaner per side, a couple clean shop rags, and some grease or brake assembly lube for the star wheel adjuster and contact points. You may need a little rust penetrating lubricant and a rubber mallet to get the drum off.
When you are refitting the drum over the new shoes, expand the brake adjustment thingy to make sure the fit is tight, then adjust the shoes inward just until the drum turns free (the shoes can even rub
ever so slightly).
I couldn't find any really good illustrative sites, but I found this:
Servicing your rear drum brakes
Drum Brake Service