Where Do I Start? What products to sell?

I have signed up with SaleHoo and Dropshipping Wholesaler and have info on other suppliers. I can probably open an online store and probably sell on auction websites. GREAT! But I have no idea as to what to sell. My intersts are watches, candles, luggage and Christmas items. But how do I know that these items will 'fly'? Worse yet, how do I know who the dependable suppliers are for these items? It's, like, I can't AFFORD to go wrong. Suggestions, please?

Link hidden: Login to view has a large range of luggage at great prices.