Sonu Kapoor just posted about getting started with the AjaxDataControls in Visual Studio 2005. The AjaxDataControls can be found on CodePlex at http://www.codeplex.com/AjaxDataControls/. Included in the controls are a JavaScript version of the Repeater, DataList, and DataGrid. If you'd like to have AJAX functionality over your data with minimal coding, I'd definitely check this out.