regular expression to capture invalid emails

From: anonymous (anonymous_at_anon.com)
Date: 02/29/04 

Date: Sat, 28 Feb 2004 19:41:23 -0800

Ok, what I want to do is simple. I want to create a regular expression that
matches any email address that ends in two characters like antyhing@home.tv
but not anything@home.us my working regexp: (.*)@(.*)\.(\w){2}$
how do I change it so it doesn't match .us? I want to do it all in one
expression for specific reasons.