Supporting Claims Tokens Issued by SharePoint 2010 in Claims-Aware Web Application and Vice Versa

We have SharePoint 2010 setup in our organization. We are planning to migrate to claims based authentication in SharePoint 2010 as we need to support single sign on with custom ASP .NET web applications. We will be creating number of ASP .NET web application which will be claims aware and will be authenticating off the ADFS. The web application will accept windows logon or can be forms based; however; this is still not decided.

Now we want to implement Single Sign On, where a user logged in to SharePoint does not need to login again to custom ASP .NET application and vice versa.

I have seen many article, but I am not getting proper lead on the correct way to go with.

Please help.