as far as handling them goes.. im sure that anyone on this forum will agree that you should touch them as little as possible.. frogs have delicate skin, that is easily damaged and they absorb moisture, oils, and toxins through the skin, because of these reasons is it best to look at the frogs, not handle them. this advice goes for any species of amphibian, not just frogs.
as far as food goes, ask your local petstore if they can order pinheads for you... sometimes they can, sometimes not.. but its worth a try.. how big are they? frogs can eat amazingly large prey in comparison to thier own body size.. i have squirrel treefrogs that would fit on a half dollar that eat "small" (i think 1/4 inch) crickets easily.. you wouldnt want to give them large ones, but depending on thier size, they might be able to eat the smallest ones your petstore offers..
hope that helps ...
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my pets: clown treefrogs, reed frogs, big eyed treefrogs, tiger leg monkey frogs, gray treefrogs, milk frogs, cuban treefrogs, whites tree frog, green treefrogs, squirrel treefrogs, blue webbed gliding treefrog, chameleon treefrogs?, dusky salamanders, tiger salamander, veiled chameleon, box turtles, mud turtle, map turtle, yellowbelly slider, florida softshell, two saltwater tanks, four cats, two chinchillas, and a boyfriend.