With an html structure like that:
You can easily show the text with "this" handler of jQuery which refers to the current element hovered:
$(".checkboxContainer").hover(
function() {
$(this).find(".infoCheckbox:first").show();
},
function() {
$(this).find(".infoCheckbox:first").hide();
}
);
Demo here: http://jsfiddle.net/pdRX2/