The key here, folks, is balance. I agree with Z-trip in that pacmans shouldn't be fed exclusively mice, but in the same token, not exclusively insects either. Just like sav monitors and other lizards, these animals are opportunists in the wild and won't hesitate to gobble up anything that will fit in their mouths. However, these animals don't know when their next meal will be (which could be a week or more at a time). In captivity, they're fed more routinely and thus, more care needs to be taken to make sure they don't get too much or too little of a particular food item. I have seen too many pacmans (and others, too, including dumpy's and pyxies) that are so obese that the folds of fat cover their eyes. So variety, variety, variety...and like Smmfish suggested, maybe just one mouse every week or two is fine.