Single Sign on between Sharepoint and ASP.Net Applications

All Applications to be hosted in one IIS and shud be set to windows authentication in web.config files.
Otherwise..some Kerberos Delegation...Networking and stuff.

http://social.msdn.microsoft.com/Forums/en/sharepointdevelopment/thread/f38b4ea1-ab7e-4d55-b64f-01d6db8b02ab