This blog posting about creating custom property editors for Sharepoint 2007 Web Parts was really helpful today: blog link. The article is a how to, in good detail, on how to inherit the Microsoft.SharePoint.WebPartPages.ToolPart class. Thus allowing a developer to add additional, and much needed, functionality to the web part property pane. (English language clarification here: pane is a completely different word than pain but in the context of Sharepoint web part property pane it means the same thing. Until you customize it!). Sadly, after discovering this technique, someone came over to tell me that they changed their mind on the web part feature and wanted something completely different. Oh well! I learned something new today and I have a feeling there will be a need for this in the future.