3rd Party Controls for WPF
In browsing around the Windows Vista developer center (http://msdn.microsoft.com/windowsvista), I noticed the 3rd party control link on the WPF page. From that page (http://msdn.microsoft.com/winfx/downloads/presentation/), you can access dowloads of the Infragistics Data Presenter and the Software FX ChartFX controls for WPF.
I've been working with both of these controls informally over the last few months, and it's quite impressive to see how these vendors have embraced WPF to produce high-quality components that make use of WPF as it was intended to be used. I hadn't realized that were publically available though, or I would've posted on this much sooner.
If you're a WPF enthusiast (like me), I encourage you to follow the download links and give these components a try. The versions I'm using are compatible with the June CTP builds of Vista and NetFX3, and can stylized and templatized to your liking - just start with the samples they provide and have at it.