9b3eafd4_dio__that_is_the_the_question___SharePoint_Designer_2007
Can include InfoPath web enabled forms as a data collection vehicle via Forms Server. [SharePoint Designer 2007] 
ASP.NET 2.0 ASPX pages are built automatically at design time, but you can customize them after they've been generated.
Andrew Connell, MVP SharePoint Server - Authoring workflows in WSS v3 - to use SharePoint Designer or Visual Studio, that is the the question!
SharePoint Designer 2007