Hi shoptdaybay, and welcome to the site.
I suggest researching your market is the best place to start, because that's what will take the most effort in developing. As Drop Shipping is your chosen supply avenue, you need to canvass Drop Ship suppliers and compare their services and prices.
You also have to research your selling platform, ebay for example. You need to know what the competition is like for the products you are interested in selling, and if you can source from a supplier cost effectively enough to create a market for yourself.
Plenty of helpful advice spread throughout the forum, so check all that out and just yell out if there is something specific you would like information on, and there will be plenty willing and ready to give you some advice.
You may want to check out the free guides we have available for members as well, you can download them from the menu on the left : )