Our Channel 9 Learning Center has released some great resources for both Office Development and SharePoint Development.
SharePoint 2010 provides the business collaboration platform for developers to rapidly build solutions using familiar tools while leveraging a rich set of out of the box features. Visual Studio 2010 and SharePoint Designer 2010 make developers more productive and Visual Studio Team Foundation Server delivers support for application lifecycle management. Developers can integrate Line of Business data in SharePoint 2010 with read/write capability delivered by Business Connectivity Services. Sandboxed Solutions can be deployed to a shared hosting environment to limit the impact of unpredictable code to the other applications in use.
Office 2010 Beta is a broadly extensible platform for building information worker productivity solutions and developing for Office with Visual Studio 2010 makes this easy. The Office 2010 Developer Workshop includes videos and presentations. This content is designed to help you get started developing solutions, from Add-ins to full featured Office Business Applications (OBAs), using Visual Studio 2010 with Office 2010 and SharePoint 2010 as the core platform.
There are more courses available too so head down to our Channel 9 Learning Center and start learning at your own pace in your own time.