If you are keen to skill up on developing line of business applications - and in particular if you are likely to want to train other people in the art, we have a very exclusive small training course running in Reading for 2 days:
Office Business Applications (OBA) 2 day training course, Reading, September 17th & 18th - Subsidised for Microsoft Partners
This two day technical training course explores an emerging category of applications, known as Office Business Applications (OBA). It explores the technologies that underpin them, in particular Microsoft Office 2007, Windows SharePoint Services, Microsoft Office SharePoint Services 2007, and Open XML. This course is being led by Patrick Tisseghem, leading SharePoint expert, and author of the MSDN book "Inside Microsoft Office SharePoint Server 2007".