if you are only sharing internally then Oscam is probably your best bet, not because CCcam will melt your card, but because there are channels that won't work with CCcam. Your sly card won't melt unless you are clocking it more than 500Mhz -and there is no reason to overclock your card - again overclocking cards is just an effort to make a server faster and this is more to do with external shares.
Read about the positives - i think too many people search the net for people who have had problems - spend the same amount of time reading the positives and you will get a balanced view.
