Endurox and Accelerade are basically the same except that Accelerade is less concentrated. Accelerade is essentially a standard carbo replacement drink like Gatorade, Powerade, etc. (6% to 8% carb solution) BUT they add a little protein (1 gram protein for every 4 grams carb) and some vitamins. The stuff is not cheap, and no recovery drink is going to perform miracles (no matter what the ads say).
My suggestion: Buy unsweetened powdered drink mix (Kool-Aid, Wyler's, etc.) and mix in half the sugar the directions indicate. Add a pinch or two of salt and/or a pinch of baking soda per sports bottle. That'll get you a 6-8% carb solution with some electrolytes, cheap (and most of these drinks are fortified with vitamin C, too). Your muscles won't care what the label says. If you really want to go for the additional protein, get a container of whey protein (like Designer Whey, natural flavor) and add half a scoop per sports bottle. Without the protein this will cost only pennies per bottle, with protein add another 25 cents or so. That's a fraction of Endurox/Accelerade.
I think it's more important to refuel after a workout (within half an hour) with REAL food. There are lots of choices out there that are healthy and high in carbs, low in fat, and still have the 4:1 carb:protein ratio (if you want it). Two examples are a bowl of raisin bran with skim milk and many brands of fruit-on-the-bottom yogurt (Columbo, Breyers, etc.) I have refueled with a double bowl of raisin bran with extra fruit (in-season) and wheat germ for years. Lots of complex carbs and enough fiber to unplug an elephant.