Marc, the company I mentioned above "Global-Lover," said they don't have CSV file, but they do offer drop ship. They said I would have to have one order and one item, something like that. Do that sound suspect, or is that the way some drop ship companies do business?
The fact that they don't provide a CSV file is a paint, because it means that you will have to upload product by product. A CSV file make multiple uploads possible and save a lot of time, especially if you are going to list a lot of their products.
In relation to them being safe. I would suggest it's always wise to order at least one of any product you are thinking of selling so you can test the product quality, but also the shipping time, customers service and so on and remember to always use a safe payment method. Follow those basic rules, and you're pretty much covered as well as you can possibly be.