Here's the slides, sample code and links from my jQuery talk at the SkillsMatter Open Source .NET Exchange here in London on 22nd January.
- Slides : Powerpoint 2007, PDF, PNG
- Code: jquery_examples.zip - requires Visual Studio 2008 and the ASP.NET MVC Beta
jQuery is available from www.jquery.com
You'll find up-to-date -vsdoc.js files, including support for jQuery 1.3, on James Hart's blog.
Since ASP.NET MVC is still in beta, your best bet for working code and examples integrating it with other libraries like jQuery is probably Stack Overflow, which has a fairly active and enthusiastic ASP.NET MVC contingent.