I have been using Paypal post sale manager . It's been the best way to keep track of ebay sales for me. (even with the quirks) I just saw the following on Paypal and now need to find a better program.

The items I sell off ebay are growing and I would like to find a program that will do both types of sales.
If you have used a program and it will do both please send me an email or a post a response.

Post-Sale Manager

We regret to inform you that Post-Sale Manager will be discontinued after August 18, 2005. We apologize for any inconvenience this may cause.

We encourage you to go to the "Items Sold" section of My eBay as we have worked with eBay to develop an improved set of tools so you can better manage your selling activities on eBay.