Hi!
With the new eBay release today, all insurance options (even if it's "included in S&H")are being automatically dropped from new listings by eBay. You can state in the item description that the item will be insured when shipped, but that's about it.
Keep in mind that this new policy makes sellers responsible for their items until they are in their customers' hands. Whether or not the sellers chooses to insure their packages is entirely up to them. Thus, there is no need to mention insurance to the buyers.