Worried about buyers with new accounts/zero feedback bidding on my expensive item

Hi All, This is the first time I am selling an item of significant value on Ebay (Canon camera) and I see that most of the bids so far are from people with new accounts/zero feedback. I have read about a lot of horror stories where sellers have somehow been scammed from such bidders using various methods. (Returning a broken version of item, etc)I was just wondering what steps I can take to eliminate/minimise the chances of something like this happening to me?