I agree with Donna however - if you find an item you want to sell contact the manufactor of the items, sometimes they will offer the service on a per order flat fee.
If the dropshipper is not the manufactor then you are wasting your time
Oh and don't waste you money on any lists or programs. don't pay for anything until you actually purchase the product. Also most of these companies won't require a resale cert. but the manufactor will require it!
Hope this helps