This product will do the heavy lifting for you! I searched the alternatives, but pound for pound Ebay Blackthorne is by far the best buy. You can pay MUCH MORE, and still not have the features this software offers.
I started using Blackthorne (Seller's Assistant Pro) in 2002, there is a learning curve, to be sure, but with so much capablility, there's a lot to learn.
If/when you need help, it is easy to get. On the discussion group site, the support staff & other users respond in minutes, with good humor, encouragement and answers.
We depend on our ebay business and could not run it - there wouldn't be enough hours in the day - without Blackthorne Pro.