Drop shipping is tough because you do not have a control of inventory as mentioned before. The only good database for a lot of wholesalers I could find was onesource by Worldwide Brands. I tried few others and they were so much more expensive that it was cheaper for me to buy inventory at walmart and resell it on eBay

But there are so many other things you can do. What about becoming an affiliate marketer and promoting ebay products? Here is a blog http://www.squidoo.com/howtostartebaybusinessthat talks about starting on eBay and how to become an affiliate marketer for ebay as well. So maybe that helps.